diff --git a/examples/lib/stories/games/trex/obstacle/obstacle_type.dart b/examples/lib/stories/games/trex/obstacle/obstacle_type.dart
index 84b0f7a6eda..0bc5d4e0a38 100644
--- a/examples/lib/stories/games/trex/obstacle/obstacle_type.dart
+++ b/examples/lib/stories/games/trex/obstacle/obstacle_type.dart
@@ -1,3 +1,5 @@
+// ignore_for_file: unused_element
+
 import 'dart:ui';
 
 import 'package:flame/collisions.dart';
diff --git a/examples/pubspec.yaml b/examples/pubspec.yaml
index 319ce4440b5..4be229276d6 100644
--- a/examples/pubspec.yaml
+++ b/examples/pubspec.yaml
@@ -6,8 +6,8 @@ publish_to: 'none'
 version: 0.1.0
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame: ^1.1.1
diff --git a/packages/flame/example/pubspec.yaml b/packages/flame/example/pubspec.yaml
index 4bce9fefeca..62091c04411 100644
--- a/packages/flame/example/pubspec.yaml
+++ b/packages/flame/example/pubspec.yaml
@@ -4,8 +4,8 @@ version: 0.1.0
 publish_to: 'none'
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame:
diff --git a/packages/flame/lib/src/game/game_render_box.dart b/packages/flame/lib/src/game/game_render_box.dart
index 09f48dd0c5f..c52d77e612e 100644
--- a/packages/flame/lib/src/game/game_render_box.dart
+++ b/packages/flame/lib/src/game/game_render_box.dart
@@ -3,6 +3,7 @@ import 'package:flutter/widgets.dart' hide WidgetBuilder;
 
 import 'game_loop.dart';
 import 'mixins/game.dart';
+//ignore_for_file: unnecessary_non_null_assertion
 
 class GameRenderBox extends RenderBox with WidgetsBindingObserver {
   BuildContext buildContext;
diff --git a/packages/flame/lib/src/game/game_widget/game_widget.dart b/packages/flame/lib/src/game/game_widget/game_widget.dart
index 38a353046fc..b6b52901616 100644
--- a/packages/flame/lib/src/game/game_widget/game_widget.dart
+++ b/packages/flame/lib/src/game/game_widget/game_widget.dart
@@ -49,7 +49,7 @@ class GameWidget<T extends Game> extends StatefulWidget {
   /// A map to show widgets overlay.
   ///
   /// See also:
-  /// - [new GameWidget]
+  /// - [GameWidget]
   /// - [Game.overlays]
   final Map<String, OverlayWidgetBuilder<T>>? overlayBuilderMap;
 
@@ -58,7 +58,7 @@ class GameWidget<T extends Game> extends StatefulWidget {
   /// To control the overlays that are active use [Game.overlays].
   ///
   /// See also:
-  /// - [new GameWidget]
+  /// - [GameWidget]
   /// - [Game.overlays]
   final List<String>? initialActiveOverlays;
 
diff --git a/packages/flame/lib/src/game/game_widget/gestures.dart b/packages/flame/lib/src/game/game_widget/gestures.dart
index 78a005f5f42..8eeba5b65ca 100644
--- a/packages/flame/lib/src/game/game_widget/gestures.dart
+++ b/packages/flame/lib/src/game/game_widget/gestures.dart
@@ -193,7 +193,7 @@ Widget applyAdvancedGesturesDetectors(Game game, Widget child) {
 
   if (game is MultiTapListener) {
     addRecognizer(
-      () => MultiTapGestureRecognizer(),
+      MultiTapGestureRecognizer.new,
       (MultiTapGestureRecognizer instance) {
         final g = game as MultiTapListener;
         instance.longTapDelay = Duration(
@@ -210,7 +210,7 @@ Widget applyAdvancedGesturesDetectors(Game game, Widget child) {
 
   void addDragRecognizer(Drag Function(int, DragStartInfo) config) {
     addRecognizer(
-      () => ImmediateMultiDragGestureRecognizer(),
+      ImmediateMultiDragGestureRecognizer.new,
       (ImmediateMultiDragGestureRecognizer instance) {
         var lastGeneratedDragId = 0;
         instance.onStart = (Offset o) {
diff --git a/packages/flame/lib/src/text.dart b/packages/flame/lib/src/text.dart
index 6b6259368e0..01369efb4eb 100644
--- a/packages/flame/lib/src/text.dart
+++ b/packages/flame/lib/src/text.dart
@@ -18,8 +18,8 @@ abstract class TextRenderer {
   /// If you add a new [TextRenderer] child, you can register it by adding it,
   /// together with a provider lambda, to this map.
   static Map<Type, TextRenderer Function()> defaultRenderersRegistry = {
-    TextRenderer: () => TextPaint(),
-    TextPaint: () => TextPaint(),
+    TextRenderer: TextPaint.new,
+    TextPaint: TextPaint.new,
   };
 
   final TextDirection textDirection;
diff --git a/packages/flame/lib/src/widgets/nine_tile_box.dart b/packages/flame/lib/src/widgets/nine_tile_box.dart
index 5aa2c895cf0..10564dc3638 100644
--- a/packages/flame/lib/src/widgets/nine_tile_box.dart
+++ b/packages/flame/lib/src/widgets/nine_tile_box.dart
@@ -53,6 +53,8 @@ class NineTileBoxWidget extends StatelessWidget {
 
   final Widget? child;
 
+  final EdgeInsetsGeometry? padding;
+
   /// A builder function that is called if the loading fails
   final WidgetBuilder? errorBuilder;
 
@@ -66,6 +68,7 @@ class NineTileBoxWidget extends StatelessWidget {
     this.width,
     this.height,
     this.child,
+    this.padding,
     this.errorBuilder,
     this.loadingBuilder,
     Key? key,
@@ -80,6 +83,7 @@ class NineTileBoxWidget extends StatelessWidget {
     this.width,
     this.height,
     this.child,
+    this.padding,
     this.errorBuilder,
     this.loadingBuilder,
     Key? key,
@@ -98,6 +102,7 @@ class NineTileBoxWidget extends StatelessWidget {
           width: width,
           height: height,
           child: child,
+          padding: padding,
         );
       },
       errorBuilder: errorBuilder,
diff --git a/packages/flame/pubspec.yaml b/packages/flame/pubspec.yaml
index 4c84f2221ef..a0fbdc3121b 100644
--- a/packages/flame/pubspec.yaml
+++ b/packages/flame/pubspec.yaml
@@ -4,8 +4,8 @@ version: 1.1.1
 homepage: https://github.com/flame-engine/flame
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame/test/collisions/collision_test_helpers.dart b/packages/flame/test/collisions/collision_test_helpers.dart
index d5e11270e99..0a0d1455232 100644
--- a/packages/flame/test/collisions/collision_test_helpers.dart
+++ b/packages/flame/test/collisions/collision_test_helpers.dart
@@ -11,7 +11,7 @@ Future<void> testCollidableGame(
   String testName,
   Future Function(HasCollidablesGame) testBody,
 ) {
-  return testWithGame(testName, () => HasCollidablesGame(), testBody);
+  return testWithGame(testName, HasCollidablesGame.new, testBody);
 }
 
 class TestHitbox extends RectangleHitbox {
diff --git a/packages/flame/test/components/component_test.dart b/packages/flame/test/components/component_test.dart
index 4909114dd59..7cd347438d9 100644
--- a/packages/flame/test/components/component_test.dart
+++ b/packages/flame/test/components/component_test.dart
@@ -34,7 +34,7 @@ class _ParentOnPrepareComponent extends _OnPrepareComponent {
 }
 
 void main() {
-  final prepareGame = FlameTester(() => _PrepareGame());
+  final prepareGame = FlameTester(_PrepareGame.new);
 
   group('Component', () {
     testWithFlameGame('children in the constructor', (game) async {
diff --git a/packages/flame/test/components/composed_component_test.dart b/packages/flame/test/components/composed_component_test.dart
index d81f1dfa641..2d56ac1b198 100644
--- a/packages/flame/test/components/composed_component_test.dart
+++ b/packages/flame/test/components/composed_component_test.dart
@@ -49,7 +49,7 @@ class _MyAsyncChild extends PositionComponent {
 
 void main() {
   final size = Vector2.all(300);
-  final withTappables = FlameTester(() => _HasTappablesGame());
+  final withTappables = FlameTester(_HasTappablesGame.new);
 
   group('Composability', () {
     testWithFlameGame(
diff --git a/packages/flame/test/components/draggable_test.dart b/packages/flame/test/components/draggable_test.dart
index de4ae5e67e0..60c48c3536f 100644
--- a/packages/flame/test/components/draggable_test.dart
+++ b/packages/flame/test/components/draggable_test.dart
@@ -25,7 +25,7 @@ class _DraggableComponent extends PositionComponent with Draggable {
 }
 
 void main() {
-  final withDraggables = FlameTester(() => _GameHasDraggables());
+  final withDraggables = FlameTester(_GameHasDraggables.new);
 
   group('Draggables', () {
     withDraggables.test(
diff --git a/packages/flame/test/components/has_game_ref_test.dart b/packages/flame/test/components/has_game_ref_test.dart
index 61620957b4e..c5e98c1b49f 100644
--- a/packages/flame/test/components/has_game_ref_test.dart
+++ b/packages/flame/test/components/has_game_ref_test.dart
@@ -22,7 +22,7 @@ class _BarComponent extends Component with HasGameRef<_MyGame> {}
 class MockFlameGame extends Mock implements _MyGame {}
 
 void main() {
-  final withHasGameRef = FlameTester(() => _MyGame());
+  final withHasGameRef = FlameTester(_MyGame.new);
 
   group('HasGameRef', () {
     withHasGameRef.test('simple test', (game) {
diff --git a/packages/flame/test/components/hoverable_test.dart b/packages/flame/test/components/hoverable_test.dart
index bb5f3f33f97..a4bd13af0ec 100644
--- a/packages/flame/test/components/hoverable_test.dart
+++ b/packages/flame/test/components/hoverable_test.dart
@@ -41,7 +41,7 @@ class _NonPropagatingComponent extends _HoverableComponent {
 }
 
 void main() {
-  final withHoverables = FlameTester(() => _GameWithHoverables());
+  final withHoverables = FlameTester(_GameWithHoverables.new);
 
   group('Hoverable', () {
     withHoverables.test(
diff --git a/packages/flame/test/components/joystick_component_test.dart b/packages/flame/test/components/joystick_component_test.dart
index 77780750460..0dc534b2605 100644
--- a/packages/flame/test/components/joystick_component_test.dart
+++ b/packages/flame/test/components/joystick_component_test.dart
@@ -8,7 +8,7 @@ import 'package:test/test.dart';
 class _GameHasDraggables extends FlameGame with HasDraggables {}
 
 void main() {
-  final withDraggables = FlameTester(() => _GameHasDraggables());
+  final withDraggables = FlameTester(_GameHasDraggables.new);
 
   group('JoystickDirection tests', () {
     withDraggables.test('can convert angle to JoystickDirection', (game) async {
diff --git a/packages/flame/test/components/parallax_test.dart b/packages/flame/test/components/parallax_test.dart
index 85eb097ee93..8dde0c6cf5d 100644
--- a/packages/flame/test/components/parallax_test.dart
+++ b/packages/flame/test/components/parallax_test.dart
@@ -80,8 +80,8 @@ class _SlowLoadParallaxGame extends FlameGame {
 }
 
 void main() {
-  final parallaxGame = FlameTester(() => _ParallaxGame());
-  final slowLoadParallaxGame = FlameTester(() => _SlowLoadParallaxGame());
+  final parallaxGame = FlameTester(_ParallaxGame.new);
+  final slowLoadParallaxGame = FlameTester(_SlowLoadParallaxGame.new);
 
   group('parallax test', () {
     parallaxGame.test(
diff --git a/packages/flame/test/components/priority_test.dart b/packages/flame/test/components/priority_test.dart
index 41c26e64045..303c20da603 100644
--- a/packages/flame/test/components/priority_test.dart
+++ b/packages/flame/test/components/priority_test.dart
@@ -33,8 +33,7 @@ void main() {
     flameGame.test(
       'components with different priorities are sorted in the list',
       (game) async {
-        final priorityComponents =
-            List.generate(10, (i) => _PriorityComponent(i));
+        final priorityComponents = List.generate(10, _PriorityComponent.new);
         priorityComponents.shuffle();
         await game.ensureAddAll(priorityComponents);
         componentsSorted(game.children);
@@ -45,9 +44,8 @@ void main() {
       'changing priority should reorder component list',
       (game) async {
         final firstComponent = _PriorityComponent(-1);
-        final priorityComponents =
-            List.generate(10, (i) => _PriorityComponent(i))
-              ..add(firstComponent);
+        final priorityComponents = List.generate(10, _PriorityComponent.new)
+          ..add(firstComponent);
         priorityComponents.shuffle();
         final components = game.children;
         await game.ensureAddAll(priorityComponents);
@@ -63,9 +61,8 @@ void main() {
       'changing priority with the priority setter should reorder the list',
       (game) async {
         final firstComponent = _PriorityComponent(-1);
-        final priorityComponents =
-            List.generate(10, (i) => _PriorityComponent(i))
-              ..add(firstComponent);
+        final priorityComponents = List.generate(10, _PriorityComponent.new)
+          ..add(firstComponent);
         priorityComponents.shuffle();
         final components = game.children;
         await game.ensureAddAll(priorityComponents);
@@ -80,8 +77,7 @@ void main() {
     flameGame.test(
       'changing priorities should reorder component list',
       (game) async {
-        final priorityComponents =
-            List.generate(10, (i) => _PriorityComponent(i));
+        final priorityComponents = List.generate(10, _PriorityComponent.new);
         priorityComponents.shuffle();
         final components = game.children;
         await game.ensureAddAll(priorityComponents);
@@ -102,8 +98,7 @@ void main() {
       'changing child priority should reorder component list',
       (game) async {
         final parentComponent = _PriorityComponent(0);
-        final priorityComponents =
-            List.generate(10, (i) => _PriorityComponent(i));
+        final priorityComponents = List.generate(10, _PriorityComponent.new);
         priorityComponents.shuffle();
         await game.ensureAdd(parentComponent);
         await parentComponent.ensureAddAll(priorityComponents);
@@ -121,8 +116,7 @@ void main() {
       'changing child priorities should reorder component list',
       (game) async {
         final parentComponent = _PriorityComponent(0);
-        final priorityComponents =
-            List.generate(10, (i) => _PriorityComponent(i));
+        final priorityComponents = List.generate(10, _PriorityComponent.new);
         priorityComponents.shuffle();
         await game.ensureAdd(parentComponent);
         await parentComponent.ensureAddAll(priorityComponents);
@@ -145,8 +139,7 @@ void main() {
       (game) async {
         final grandParentComponent = _PriorityComponent(0);
         final parentComponent = _PriorityComponent(0);
-        final priorityComponents =
-            List.generate(10, (i) => _PriorityComponent(i));
+        final priorityComponents = List.generate(10, _PriorityComponent.new);
         priorityComponents.shuffle();
         await game.ensureAdd(grandParentComponent);
         await grandParentComponent.ensureAdd(parentComponent);
diff --git a/packages/flame/test/components/timer_component_test.dart b/packages/flame/test/components/timer_component_test.dart
index 248cc39a9dd..b682cb913bf 100644
--- a/packages/flame/test/components/timer_component_test.dart
+++ b/packages/flame/test/components/timer_component_test.dart
@@ -30,7 +30,7 @@ class _NonRepeatingTimerComponent extends TimerComponent {
 
 void main() {
   group('TimerComponent', () {
-    final tester = FlameTester(() => FlameGame());
+    final tester = FlameTester(FlameGame.new);
 
     tester.test('runs the tick method', (game) {
       final timer = _MyTimerComponent();
diff --git a/packages/flame/test/effects/controllers/effect_controller_test.dart b/packages/flame/test/effects/controllers/effect_controller_test.dart
index aa9905a95d7..a64b95fc210 100644
--- a/packages/flame/test/effects/controllers/effect_controller_test.dart
+++ b/packages/flame/test/effects/controllers/effect_controller_test.dart
@@ -315,7 +315,7 @@ void main() {
     group('errors', () {
       test('empty', () {
         expect(
-          () => EffectController(),
+          EffectController.new,
           failsAssert('Either duration or speed must be specified'),
         );
       });
diff --git a/packages/flame/test/experimental/fixed_size_viewport_test.dart b/packages/flame/test/experimental/fixed_size_viewport_test.dart
index 8baab8e26a3..1ec6df85104 100644
--- a/packages/flame/test/experimental/fixed_size_viewport_test.dart
+++ b/packages/flame/test/experimental/fixed_size_viewport_test.dart
@@ -46,7 +46,7 @@ void main() {
       expect(viewport.containsLocalPoint(Vector2(300, 100)), true);
     });
 
-    FlameTester(() => FlameGame()).testGameWidget(
+    FlameTester(FlameGame.new).testGameWidget(
       'Clipping behavior',
       setUp: (game, tester) async {
         final world = World();
diff --git a/packages/flame/test/game/flame_game_test.dart b/packages/flame/test/game/flame_game_test.dart
index 4b02c84b5e9..da38c2a6495 100644
--- a/packages/flame/test/game/flame_game_test.dart
+++ b/packages/flame/test/game/flame_game_test.dart
@@ -5,6 +5,7 @@ import 'package:flame_test/flame_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+
 import 'projector_test.dart';
 
 void main() {
@@ -42,7 +43,7 @@ void main() {
 
       testWithGame<_GameWithTappables>(
         'Add component with onLoad function',
-        () => _GameWithTappables(),
+        _GameWithTappables.new,
         (game) async {
           final component = _MyAsyncComponent();
           await game.ensureAdd(component);
@@ -66,7 +67,7 @@ void main() {
 
       testWithGame<_GameWithTappables>(
         'component can be tapped',
-        () => _GameWithTappables(),
+        _GameWithTappables.new,
         (game) async {
           final component = _MyTappableComponent();
           await game.ensureAdd(component);
diff --git a/packages/flame/test/game/game_widget/game_widget_drag_test.dart b/packages/flame/test/game/game_widget/game_widget_drag_test.dart
index 0fc348e00cb..326ab00c8e2 100644
--- a/packages/flame/test/game/game_widget/game_widget_drag_test.dart
+++ b/packages/flame/test/game/game_widget/game_widget_drag_test.dart
@@ -49,9 +49,9 @@ class _PanGame extends FlameGame with PanDetector {
 }
 
 void main() {
-  final horizontalGame = FlameTester(() => _HorizontalDragGame());
-  final verticalGame = FlameTester(() => _VerticalDragGame());
-  final panGame = FlameTester(() => _PanGame());
+  final horizontalGame = FlameTester(_HorizontalDragGame.new);
+  final verticalGame = FlameTester(_VerticalDragGame.new);
+  final panGame = FlameTester(_PanGame.new);
 
   group('GameWidget - HorizontalDragDetector', () {
     horizontalGame.testGameWidget(
diff --git a/packages/flame/test/game/game_widget/game_widget_pause_test.dart b/packages/flame/test/game/game_widget/game_widget_pause_test.dart
index b54adbdebcb..06e4e44d2a5 100644
--- a/packages/flame/test/game/game_widget/game_widget_pause_test.dart
+++ b/packages/flame/test/game/game_widget/game_widget_pause_test.dart
@@ -6,6 +6,7 @@ import 'package:flutter_test/flutter_test.dart';
 class _Wrapper extends StatefulWidget {
   const _Wrapper({
     required this.child,
+    // ignore: unused_element
     this.small = false,
   });
 
diff --git a/packages/flame/test/game/game_widget/game_widget_tap_test.dart b/packages/flame/test/game/game_widget/game_widget_tap_test.dart
index 76185fcaec4..245087de3b2 100644
--- a/packages/flame/test/game/game_widget/game_widget_tap_test.dart
+++ b/packages/flame/test/game/game_widget/game_widget_tap_test.dart
@@ -29,8 +29,8 @@ class _DoubleTapGame extends FlameGame with DoubleTapDetector {
 }
 
 void main() {
-  final tapGame = FlameTester(() => _TapGame());
-  final doubleTapGame = FlameTester(() => _DoubleTapGame());
+  final tapGame = FlameTester(_TapGame.new);
+  final doubleTapGame = FlameTester(_DoubleTapGame.new);
 
   group('GameWidget - TapDetectors', () {
     tapGame.testGameWidget(
diff --git a/packages/flame/test/game/game_widget/game_widget_test.dart b/packages/flame/test/game/game_widget/game_widget_test.dart
index fe31e78cd70..faa381fad01 100644
--- a/packages/flame/test/game/game_widget/game_widget_test.dart
+++ b/packages/flame/test/game/game_widget/game_widget_test.dart
@@ -67,7 +67,7 @@ class _MyGame extends FlameGame {
 
 FlameTester<_MyGame> myGame({required bool open}) {
   return FlameTester(
-    () => _MyGame(),
+    _MyGame.new,
     pumpWidget: (gameWidget, tester) async {
       await tester.pumpWidget(_Wrapper(child: gameWidget, open: open));
     },
diff --git a/packages/flame/test/game/mixins/has_draggables_test.dart b/packages/flame/test/game/mixins/has_draggables_test.dart
index 973e3996534..4e0dcb836a8 100644
--- a/packages/flame/test/game/mixins/has_draggables_test.dart
+++ b/packages/flame/test/game/mixins/has_draggables_test.dart
@@ -56,7 +56,7 @@ class _DraggableComponent extends PositionComponent with Draggable {
 }
 
 void main() {
-  final withDraggables = FlameTester(() => _GameWithDraggables());
+  final withDraggables = FlameTester(_GameWithDraggables.new);
 
   group('HasDraggables', () {
     withDraggables.test(
diff --git a/packages/flame/test/game/mixins/has_tappables_test.dart b/packages/flame/test/game/mixins/has_tappables_test.dart
index d9e37887c8f..e3c4ce6dcf6 100644
--- a/packages/flame/test/game/mixins/has_tappables_test.dart
+++ b/packages/flame/test/game/mixins/has_tappables_test.dart
@@ -71,7 +71,7 @@ class _TappableComponent extends PositionComponent with Tappable {
 }
 
 void main() {
-  final withTappables = FlameTester(() => _GameWithTappables());
+  final withTappables = FlameTester(_GameWithTappables.new);
 
   group('HasTappables', () {
     withTappables.test(
diff --git a/packages/flame/test/game/mixins/single_game_instance_test.dart b/packages/flame/test/game/mixins/single_game_instance_test.dart
index 182a7deb34a..c80120fa0c3 100644
--- a/packages/flame/test/game/mixins/single_game_instance_test.dart
+++ b/packages/flame/test/game/mixins/single_game_instance_test.dart
@@ -18,7 +18,7 @@ void main() {
         ..onGameResize(Vector2.all(100))
         ..onMount();
       expect(
-        () => FlameGame(),
+        FlameGame.new,
         failsAssert(
           "Instance of 'FlameGame' instantiated, while another game "
           "Instance of 'SingletonGame' declares itself to be a singleton",
diff --git a/packages/flame/test/sprite_test.dart b/packages/flame/test/sprite_test.dart
index 22d5a302014..03db73d2871 100644
--- a/packages/flame/test/sprite_test.dart
+++ b/packages/flame/test/sprite_test.dart
@@ -10,7 +10,7 @@ import '_resources/load_image.dart';
 
 void main() {
   group('Sprite', () {
-    FlameTester(() => FlameGame()).testGameWidget(
+    FlameTester(FlameGame.new).testGameWidget(
       'Render with anchor',
       setUp: (game, tester) async {
         game.add(MyComponent()..position = Vector2.all(25));
diff --git a/packages/flame/test/text_test.dart b/packages/flame/test/text_test.dart
index 05340f8576d..acc34871848 100644
--- a/packages/flame/test/text_test.dart
+++ b/packages/flame/test/text_test.dart
@@ -44,7 +44,7 @@ void main() {
 
     test('custom renderer', () {
       TextRenderer.defaultRenderersRegistry[_CustomTextRenderer] =
-          () => _CustomTextRenderer();
+          _CustomTextRenderer.new;
       final tc = TextComponent<_CustomTextRenderer>(text: 'foo');
       expect(tc.textRenderer, isA<_CustomTextRenderer>());
     });
diff --git a/packages/flame_audio/example/pubspec.yaml b/packages/flame_audio/example/pubspec.yaml
index 4034d7b35a9..9b5aa8a1dba 100644
--- a/packages/flame_audio/example/pubspec.yaml
+++ b/packages/flame_audio/example/pubspec.yaml
@@ -6,7 +6,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dependencies:
   flame:
diff --git a/packages/flame_audio/lib/bgm.dart b/packages/flame_audio/lib/bgm.dart
index 6fb3518a35f..ea6a8c62f73 100644
--- a/packages/flame_audio/lib/bgm.dart
+++ b/packages/flame_audio/lib/bgm.dart
@@ -3,6 +3,8 @@ import 'dart:io';
 import 'package:audioplayers/audioplayers.dart';
 import 'package:flutter/widgets.dart';
 
+//ignore_for_file: invalid_null_aware_operator
+
 /// {@template _bgm}
 /// The looping background music class.
 ///
diff --git a/packages/flame_audio/pubspec.yaml b/packages/flame_audio/pubspec.yaml
index 782c131caef..f1aa6fbbe92 100644
--- a/packages/flame_audio/pubspec.yaml
+++ b/packages/flame_audio/pubspec.yaml
@@ -4,8 +4,8 @@ version: 1.0.2
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_audio
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame: ^1.1.1
diff --git a/packages/flame_bloc/example/pubspec.yaml b/packages/flame_bloc/example/pubspec.yaml
index 4929c99ce60..b72c7d01275 100644
--- a/packages/flame_bloc/example/pubspec.yaml
+++ b/packages/flame_bloc/example/pubspec.yaml
@@ -6,7 +6,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_bloc/pubspec.yaml b/packages/flame_bloc/pubspec.yaml
index 052f7bdfa58..74667837739 100644
--- a/packages/flame_bloc/pubspec.yaml
+++ b/packages/flame_bloc/pubspec.yaml
@@ -4,8 +4,8 @@ version: 1.4.0
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_bloc
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_bloc/test/flame_bloc_game_test.dart b/packages/flame_bloc/test/flame_bloc_game_test.dart
index c129d2c9c2d..59f02707405 100644
--- a/packages/flame_bloc/test/flame_bloc_game_test.dart
+++ b/packages/flame_bloc/test/flame_bloc_game_test.dart
@@ -47,7 +47,7 @@ void main() {
     });
 
     final blocGame = FlameTester<MyBlocGame>(
-      () => MyBlocGame(),
+      MyBlocGame.new,
       pumpWidget: (gameWidget, tester) async {
         await tester.pumpWidget(
           BlocProvider<InventoryCubit>.value(
diff --git a/packages/flame_bloc/test/src/flame_bloc_provider_test.dart b/packages/flame_bloc/test/src/flame_bloc_provider_test.dart
index 38f446631bf..23af7a1e3eb 100644
--- a/packages/flame_bloc/test/src/flame_bloc_provider_test.dart
+++ b/packages/flame_bloc/test/src/flame_bloc_provider_test.dart
@@ -87,7 +87,7 @@ void main() {
     group('onRemove', () {
       testWithFlameGame('dispose created blocs', (game) async {
         final provider = FlameBlocProvider<InventoryCubit, InventoryState>(
-          create: () => InventoryCubit(),
+          create: InventoryCubit.new,
         );
         await game.ensureAdd(provider);
         expect(provider.bloc.isClosed, isFalse);
diff --git a/packages/flame_fire_atlas/example/pubspec.yaml b/packages/flame_fire_atlas/example/pubspec.yaml
index 5831aee5001..5a0e78e5fcc 100644
--- a/packages/flame_fire_atlas/example/pubspec.yaml
+++ b/packages/flame_fire_atlas/example/pubspec.yaml
@@ -6,7 +6,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_fire_atlas/pubspec.yaml b/packages/flame_fire_atlas/pubspec.yaml
index b8872234752..fb85a9a69ee 100644
--- a/packages/flame_fire_atlas/pubspec.yaml
+++ b/packages/flame_fire_atlas/pubspec.yaml
@@ -4,8 +4,8 @@ version: 1.0.2
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_fire_atlas
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_flare/example/pubspec.yaml b/packages/flame_flare/example/pubspec.yaml
index 63a2d09dcf6..5b96d7968be 100644
--- a/packages/flame_flare/example/pubspec.yaml
+++ b/packages/flame_flare/example/pubspec.yaml
@@ -4,8 +4,8 @@ publish_to: 'none'
 version: 0.1.0
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame:
diff --git a/packages/flame_flare/pubspec.yaml b/packages/flame_flare/pubspec.yaml
index a1f36bc6ed0..07e2b9ba403 100644
--- a/packages/flame_flare/pubspec.yaml
+++ b/packages/flame_flare/pubspec.yaml
@@ -4,8 +4,8 @@ version: 1.1.1
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_flare
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame: ^1.1.1
diff --git a/packages/flame_forge2d/example/pubspec.yaml b/packages/flame_forge2d/example/pubspec.yaml
index aa39cc2242d..fb7aee37319 100644
--- a/packages/flame_forge2d/example/pubspec.yaml
+++ b/packages/flame_forge2d/example/pubspec.yaml
@@ -6,8 +6,8 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_forge2d/pubspec.yaml b/packages/flame_forge2d/pubspec.yaml
index b2249c43e20..96e1769a9fb 100644
--- a/packages/flame_forge2d/pubspec.yaml
+++ b/packages/flame_forge2d/pubspec.yaml
@@ -4,8 +4,8 @@ version: 0.11.0
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_forge2d
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame: ^1.1.1
diff --git a/packages/flame_lint/pubspec.yaml b/packages/flame_lint/pubspec.yaml
index 54017b797db..30452523bd0 100644
--- a/packages/flame_lint/pubspec.yaml
+++ b/packages/flame_lint/pubspec.yaml
@@ -5,7 +5,7 @@ homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_lint
 publish_to: 'none'
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dev_dependencies:
   dartdoc: ^4.1.0
diff --git a/packages/flame_oxygen/example/lib/main.dart b/packages/flame_oxygen/example/lib/main.dart
index 7b01c8f31e1..0e6d064ae71 100644
--- a/packages/flame_oxygen/example/lib/main.dart
+++ b/packages/flame_oxygen/example/lib/main.dart
@@ -26,9 +26,9 @@ class ExampleGame extends OxygenGame {
     world.registerSystem(SpriteSystem());
     world.registerSystem(KawabungaSystem());
 
-    world.registerComponent<TimerComponent, double>(() => TimerComponent());
+    world.registerComponent<TimerComponent, double>(TimerComponent.new);
     world.registerComponent<VelocityComponent, Vector2>(
-      () => VelocityComponent(),
+      VelocityComponent.new,
     );
 
     final random = Random();
diff --git a/packages/flame_oxygen/example/pubspec.yaml b/packages/flame_oxygen/example/pubspec.yaml
index b6da09d8b18..3f26d161b27 100644
--- a/packages/flame_oxygen/example/pubspec.yaml
+++ b/packages/flame_oxygen/example/pubspec.yaml
@@ -6,7 +6,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_oxygen/lib/src/oxygen_game.dart b/packages/flame_oxygen/lib/src/oxygen_game.dart
index ef8665b14b2..198ccc8f145 100644
--- a/packages/flame_oxygen/lib/src/oxygen_game.dart
+++ b/packages/flame_oxygen/lib/src/oxygen_game.dart
@@ -41,17 +41,17 @@ abstract class OxygenGame with Game {
   @mustCallSuper
   Future<void> onLoad() async {
     // Registering default components.
-    world.registerComponent<SizeComponent, Vector2>(() => SizeComponent());
+    world.registerComponent<SizeComponent, Vector2>(SizeComponent.new);
     world.registerComponent<PositionComponent, Vector2>(
-      () => PositionComponent(),
+      PositionComponent.new,
     );
-    world.registerComponent<AngleComponent, double>(() => AngleComponent());
-    world.registerComponent<AnchorComponent, Anchor>(() => AnchorComponent());
+    world.registerComponent<AngleComponent, double>(AngleComponent.new);
+    world.registerComponent<AnchorComponent, Anchor>(AnchorComponent.new);
     world.registerComponent<SpriteComponent, SpriteInit>(
-      () => SpriteComponent(),
+      SpriteComponent.new,
     );
-    world.registerComponent<TextComponent, TextInit>(() => TextComponent());
-    world.registerComponent<FlipComponent, FlipInit>(() => FlipComponent());
+    world.registerComponent<TextComponent, TextInit>(TextComponent.new);
+    world.registerComponent<FlipComponent, FlipInit>(FlipComponent.new);
 
     await init();
     world.init();
diff --git a/packages/flame_oxygen/pubspec.yaml b/packages/flame_oxygen/pubspec.yaml
index 49367c37e89..de7d4a16a39 100644
--- a/packages/flame_oxygen/pubspec.yaml
+++ b/packages/flame_oxygen/pubspec.yaml
@@ -4,8 +4,8 @@ version: 0.1.2
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_oxygen
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_rive/example/pubspec.yaml b/packages/flame_rive/example/pubspec.yaml
index cffc6c77822..5e907be7a36 100644
--- a/packages/flame_rive/example/pubspec.yaml
+++ b/packages/flame_rive/example/pubspec.yaml
@@ -4,7 +4,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dependencies:
   rive: 0.8.4
diff --git a/packages/flame_rive/pubspec.yaml b/packages/flame_rive/pubspec.yaml
index 5afb8f098fd..8d26b9d1bd0 100644
--- a/packages/flame_rive/pubspec.yaml
+++ b/packages/flame_rive/pubspec.yaml
@@ -4,8 +4,8 @@ homepage: https://github.com/flame-engine/flame
 version: 1.2.0
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame: ^1.1.1
diff --git a/packages/flame_svg/example/pubspec.yaml b/packages/flame_svg/example/pubspec.yaml
index fa816509ac8..c180df52dc4 100644
--- a/packages/flame_svg/example/pubspec.yaml
+++ b/packages/flame_svg/example/pubspec.yaml
@@ -6,7 +6,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_svg/pubspec.yaml b/packages/flame_svg/pubspec.yaml
index 75e488a689b..60b21eb8518 100644
--- a/packages/flame_svg/pubspec.yaml
+++ b/packages/flame_svg/pubspec.yaml
@@ -4,8 +4,8 @@ version: 1.2.0
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_svg
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame: ^1.1.1
diff --git a/packages/flame_test/example/pubspec.yaml b/packages/flame_test/example/pubspec.yaml
index e505893c531..4fb6ff340dd 100644
--- a/packages/flame_test/example/pubspec.yaml
+++ b/packages/flame_test/example/pubspec.yaml
@@ -5,7 +5,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dependencies:
   flutter:
diff --git a/packages/flame_test/example/test/flame_test_test.dart b/packages/flame_test/example/test/flame_test_test.dart
index f0184051743..59c91b92d73 100644
--- a/packages/flame_test/example/test/flame_test_test.dart
+++ b/packages/flame_test/example/test/flame_test_test.dart
@@ -2,7 +2,7 @@ import 'package:flame_test/flame_test.dart';
 import 'package:flame_test_example/game.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-final myGame = FlameTester(() => MyGame());
+final myGame = FlameTester(MyGame.new);
 void main() {
   group('flameTest', () {
     TestWidgetsFlutterBinding.ensureInitialized();
diff --git a/packages/flame_test/lib/src/flame_test.dart b/packages/flame_test/lib/src/flame_test.dart
index c8c442eeeeb..596ec6ce632 100644
--- a/packages/flame_test/lib/src/flame_test.dart
+++ b/packages/flame_test/lib/src/flame_test.dart
@@ -201,4 +201,4 @@ class FlameTester<T extends FlameGame> extends GameTester<T> {
 
 /// Default instance of Flame Tester to be used when you don't care about
 /// changing any configuration.
-final flameGame = FlameTester<FlameGame>(() => FlameGame());
+final flameGame = FlameTester<FlameGame>(FlameGame.new);
diff --git a/packages/flame_test/lib/src/test_flame_game.dart b/packages/flame_test/lib/src/test_flame_game.dart
index 186f64da7b9..c66c347f222 100644
--- a/packages/flame_test/lib/src/test_flame_game.dart
+++ b/packages/flame_test/lib/src/test_flame_game.dart
@@ -28,7 +28,7 @@ Future<void> testWithFlameGame(
   String testName,
   AsyncGameFunction<FlameGame> testBody,
 ) {
-  return testWithGame<FlameGame>(testName, () => FlameGame(), testBody);
+  return testWithGame<FlameGame>(testName, FlameGame.new, testBody);
 }
 
 /// Utility function for writing tests that require a custom game instance.
diff --git a/packages/flame_test/pubspec.yaml b/packages/flame_test/pubspec.yaml
index 6a24a65898b..a35eb73d676 100644
--- a/packages/flame_test/pubspec.yaml
+++ b/packages/flame_test/pubspec.yaml
@@ -4,8 +4,8 @@ version: 1.4.0
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_test
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame: ^1.1.1
diff --git a/packages/flame_test/test/golden_test.dart b/packages/flame_test/test/golden_test.dart
index 28fea4cfa95..deaed000d2f 100644
--- a/packages/flame_test/test/golden_test.dart
+++ b/packages/flame_test/test/golden_test.dart
@@ -6,7 +6,7 @@ import 'package:flutter_test/flutter_test.dart';
 
 void main() {
   group('Golden tests', () {
-    final tester = FlameTester(() => FlameGame());
+    final tester = FlameTester(FlameGame.new);
 
     tester.testGameWidget(
       'renders correctly',
diff --git a/packages/flame_test/test/test_with_game_test.dart b/packages/flame_test/test/test_with_game_test.dart
index 88a72a2315a..8d188ba20b1 100644
--- a/packages/flame_test/test/test_with_game_test.dart
+++ b/packages/flame_test/test/test_with_game_test.dart
@@ -18,7 +18,7 @@ void main() {
 
     testWithGame<RecordedGame>(
       'correct event sequence',
-      () => RecordedGame(),
+      RecordedGame.new,
       (game) async {
         var events = <String>[];
         events = game.events;
diff --git a/packages/flame_tiled/example/pubspec.yaml b/packages/flame_tiled/example/pubspec.yaml
index 1342a3a2335..0a4828d7ac3 100644
--- a/packages/flame_tiled/example/pubspec.yaml
+++ b/packages/flame_tiled/example/pubspec.yaml
@@ -4,7 +4,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
+  sdk: ">=2.16.0 <3.0.0"
 
 dependencies:
   flame: ^1.1.1
diff --git a/packages/flame_tiled/pubspec.yaml b/packages/flame_tiled/pubspec.yaml
index a7ade2bb674..0189d6b00e4 100644
--- a/packages/flame_tiled/pubspec.yaml
+++ b/packages/flame_tiled/pubspec.yaml
@@ -4,8 +4,8 @@ version: 1.4.0
 homepage: https://github.com/flame-engine/flame/tree/main/packages/flame_tiled
 
 environment:
-  sdk: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"
 
 dependencies:
   flame: ^1.1.1