diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneReplayRecorder.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneReplayRecorder.cs
index 159d583fc0..dcc193669b 100644
--- a/osu.Game.Tests/Visual/Gameplay/TestSceneReplayRecorder.cs
+++ b/osu.Game.Tests/Visual/Gameplay/TestSceneReplayRecorder.cs
@@ -55,7 +55,7 @@ namespace osu.Game.Tests.Visual.Gameplay
                 {
                     new Drawable[]
                     {
-                        recordingManager = new TestRulesetInputManager(new TestSceneModSettings.TestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
+                        recordingManager = new TestRulesetInputManager(TestSceneModSettings.CreateTestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
                         {
                             Recorder = recorder = new TestReplayRecorder(new Score
                             {
@@ -89,7 +89,7 @@ namespace osu.Game.Tests.Visual.Gameplay
                     },
                     new Drawable[]
                     {
-                        playbackManager = new TestRulesetInputManager(new TestSceneModSettings.TestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
+                        playbackManager = new TestRulesetInputManager(TestSceneModSettings.CreateTestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
                         {
                             ReplayInputHandler = new TestFramedReplayInputHandler(replay)
                             {
diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneReplayRecording.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneReplayRecording.cs
index 1d4245308d..3f7155f1e2 100644
--- a/osu.Game.Tests/Visual/Gameplay/TestSceneReplayRecording.cs
+++ b/osu.Game.Tests/Visual/Gameplay/TestSceneReplayRecording.cs
@@ -46,7 +46,7 @@ namespace osu.Game.Tests.Visual.Gameplay
                 {
                     new Drawable[]
                     {
-                        recordingManager = new TestRulesetInputManager(new TestSceneModSettings.TestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
+                        recordingManager = new TestRulesetInputManager(TestSceneModSettings.CreateTestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
                         {
                             Recorder = new TestReplayRecorder(new Score
                             {
@@ -80,7 +80,7 @@ namespace osu.Game.Tests.Visual.Gameplay
                     },
                     new Drawable[]
                     {
-                        playbackManager = new TestRulesetInputManager(new TestSceneModSettings.TestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
+                        playbackManager = new TestRulesetInputManager(TestSceneModSettings.CreateTestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
                         {
                             ReplayInputHandler = new TestFramedReplayInputHandler(replay)
                             {
diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneSpectatorPlayback.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneSpectatorPlayback.cs
index ef870a32a9..5fbccd54c8 100644
--- a/osu.Game.Tests/Visual/Gameplay/TestSceneSpectatorPlayback.cs
+++ b/osu.Game.Tests/Visual/Gameplay/TestSceneSpectatorPlayback.cs
@@ -109,7 +109,7 @@ namespace osu.Game.Tests.Visual.Gameplay
                 {
                     new Drawable[]
                     {
-                        recordingManager = new TestRulesetInputManager(new TestSceneModSettings.TestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
+                        recordingManager = new TestRulesetInputManager(TestSceneModSettings.CreateTestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
                         {
                             Recorder = recorder = new TestReplayRecorder
                             {
@@ -139,7 +139,7 @@ namespace osu.Game.Tests.Visual.Gameplay
                     },
                     new Drawable[]
                     {
-                        playbackManager = new TestRulesetInputManager(new TestSceneModSettings.TestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
+                        playbackManager = new TestRulesetInputManager(TestSceneModSettings.CreateTestRulesetInfo(), 0, SimultaneousBindingMode.Unique)
                         {
                             Clock = new FramedClock(manualClock),
                             ReplayInputHandler = replayHandler = new TestFramedReplayInputHandler(replay)
diff --git a/osu.Game.Tests/Visual/UserInterface/TestSceneModSettings.cs b/osu.Game.Tests/Visual/UserInterface/TestSceneModSettings.cs
index 4bb5e29589..9a3083e8db 100644
--- a/osu.Game.Tests/Visual/UserInterface/TestSceneModSettings.cs
+++ b/osu.Game.Tests/Visual/UserInterface/TestSceneModSettings.cs
@@ -35,7 +35,7 @@ namespace osu.Game.Tests.Visual.UserInterface
         public void SetUp() => Schedule(() =>
         {
             SelectedMods.Value = Array.Empty<Mod>();
-            Ruleset.Value = new TestRulesetInfo();
+            Ruleset.Value = CreateTestRulesetInfo();
         });
 
         [Test]
@@ -170,40 +170,32 @@ namespace osu.Game.Tests.Visual.UserInterface
                 ModSettingsContainer.Parent.Width = newWidth;
         }
 
-        public class TestRulesetInfo : RulesetInfo
+        public static RulesetInfo CreateTestRulesetInfo() => new TestCustomisableModRuleset().RulesetInfo;
+
+        public class TestCustomisableModRuleset : Ruleset
         {
-            public override Ruleset CreateInstance() => new TestCustomisableModRuleset();
-
-            public TestRulesetInfo()
+            public override IEnumerable<Mod> GetModsFor(ModType type)
             {
-                Available = true;
-            }
-
-            public class TestCustomisableModRuleset : Ruleset
-            {
-                public override IEnumerable<Mod> GetModsFor(ModType type)
+                if (type == ModType.Conversion)
                 {
-                    if (type == ModType.Conversion)
+                    return new Mod[]
                     {
-                        return new Mod[]
-                        {
-                            new TestModCustomisable1(),
-                            new TestModCustomisable2()
-                        };
-                    }
-
-                    return Array.Empty<Mod>();
+                        new TestModCustomisable1(),
+                        new TestModCustomisable2()
+                    };
                 }
 
-                public override DrawableRuleset CreateDrawableRulesetWith(IBeatmap beatmap, IReadOnlyList<Mod> mods = null) => throw new NotImplementedException();
-
-                public override IBeatmapConverter CreateBeatmapConverter(IBeatmap beatmap) => throw new NotImplementedException();
-
-                public override DifficultyCalculator CreateDifficultyCalculator(IWorkingBeatmap beatmap) => throw new NotImplementedException();
-
-                public override string Description { get; } = "test";
-                public override string ShortName { get; } = "tst";
+                return Array.Empty<Mod>();
             }
+
+            public override DrawableRuleset CreateDrawableRulesetWith(IBeatmap beatmap, IReadOnlyList<Mod> mods = null) => throw new NotImplementedException();
+
+            public override IBeatmapConverter CreateBeatmapConverter(IBeatmap beatmap) => throw new NotImplementedException();
+
+            public override DifficultyCalculator CreateDifficultyCalculator(IWorkingBeatmap beatmap) => throw new NotImplementedException();
+
+            public override string Description { get; } = "test";
+            public override string ShortName { get; } = "tst";
         }
 
         private class TestModCustomisable1 : TestModCustomisable
diff --git a/osu.Game/Beatmaps/DummyWorkingBeatmap.cs b/osu.Game/Beatmaps/DummyWorkingBeatmap.cs
index fcb44c462d..9ea8517764 100644
--- a/osu.Game/Beatmaps/DummyWorkingBeatmap.cs
+++ b/osu.Game/Beatmaps/DummyWorkingBeatmap.cs
@@ -38,7 +38,7 @@ namespace osu.Game.Beatmaps
                     CircleSize = 0,
                     OverallDifficulty = 0,
                 },
-                Ruleset = new DummyRulesetInfo()
+                Ruleset = new DummyRuleset().RulesetInfo
             }, audio)
         {
             this.textures = textures;
@@ -54,42 +54,37 @@ namespace osu.Game.Beatmaps
 
         public override Stream GetStream(string storagePath) => null;
 
-        private class DummyRulesetInfo : RulesetInfo
+        private class DummyRuleset : Ruleset
         {
-            public override Ruleset CreateInstance() => new DummyRuleset();
+            public override IEnumerable<Mod> GetModsFor(ModType type) => Array.Empty<Mod>();
 
-            private class DummyRuleset : Ruleset
+            public override DrawableRuleset CreateDrawableRulesetWith(IBeatmap beatmap, IReadOnlyList<Mod> mods = null)
             {
-                public override IEnumerable<Mod> GetModsFor(ModType type) => Array.Empty<Mod>();
+                throw new NotImplementedException();
+            }
 
-                public override DrawableRuleset CreateDrawableRulesetWith(IBeatmap beatmap, IReadOnlyList<Mod> mods = null)
+            public override IBeatmapConverter CreateBeatmapConverter(IBeatmap beatmap) => new DummyBeatmapConverter { Beatmap = beatmap };
+
+            public override DifficultyCalculator CreateDifficultyCalculator(IWorkingBeatmap beatmap) => null;
+
+            public override string Description => "dummy";
+
+            public override string ShortName => "dummy";
+
+            private class DummyBeatmapConverter : IBeatmapConverter
+            {
+                public event Action<HitObject, IEnumerable<HitObject>> ObjectConverted;
+
+                public IBeatmap Beatmap { get; set; }
+
+                public bool CanConvert() => true;
+
+                public IBeatmap Convert(CancellationToken cancellationToken = default)
                 {
-                    throw new NotImplementedException();
-                }
+                    foreach (var obj in Beatmap.HitObjects)
+                        ObjectConverted?.Invoke(obj, obj.Yield());
 
-                public override IBeatmapConverter CreateBeatmapConverter(IBeatmap beatmap) => new DummyBeatmapConverter { Beatmap = beatmap };
-
-                public override DifficultyCalculator CreateDifficultyCalculator(IWorkingBeatmap beatmap) => null;
-
-                public override string Description => "dummy";
-
-                public override string ShortName => "dummy";
-
-                private class DummyBeatmapConverter : IBeatmapConverter
-                {
-                    public event Action<HitObject, IEnumerable<HitObject>> ObjectConverted;
-
-                    public IBeatmap Beatmap { get; set; }
-
-                    public bool CanConvert() => true;
-
-                    public IBeatmap Convert(CancellationToken cancellationToken = default)
-                    {
-                        foreach (var obj in Beatmap.HitObjects)
-                            ObjectConverted?.Invoke(obj, obj.Yield());
-
-                        return Beatmap;
-                    }
+                    return Beatmap;
                 }
             }
         }
diff --git a/osu.Game/Rulesets/RulesetInfo.cs b/osu.Game/Rulesets/RulesetInfo.cs
index 8083041a3b..ccb614fe91 100644
--- a/osu.Game/Rulesets/RulesetInfo.cs
+++ b/osu.Game/Rulesets/RulesetInfo.cs
@@ -10,7 +10,7 @@ using osu.Framework.Testing;
 namespace osu.Game.Rulesets
 {
     [ExcludeFromDynamicCompile]
-    public class RulesetInfo : IEquatable<RulesetInfo>, IRulesetInfo
+    public sealed class RulesetInfo : IEquatable<RulesetInfo>, IRulesetInfo
     {
         public int? ID { get; set; }
 
@@ -24,7 +24,7 @@ namespace osu.Game.Rulesets
         public bool Available { get; set; }
 
         // TODO: this should probably be moved to RulesetStore.
-        public virtual Ruleset CreateInstance()
+        public Ruleset CreateInstance()
         {
             if (!Available) return null;