diff --git a/osu.Game.Rulesets.Catch/CatchRuleset.cs b/osu.Game.Rulesets.Catch/CatchRuleset.cs
index 6495c5379b..5973eea602 100644
--- a/osu.Game.Rulesets.Catch/CatchRuleset.cs
+++ b/osu.Game.Rulesets.Catch/CatchRuleset.cs
@@ -101,7 +101,7 @@ namespace osu.Game.Rulesets.Catch
                 case ModType.Conversion:
                     return new Mod[]
                     {
-                        new CatchModDifficultyAdjust(),
+                        new ModDifficultyAdjust(),
                     };
 
                 case ModType.Automation:
diff --git a/osu.Game.Rulesets.Catch/Mods/CatchModDifficultyAdjust.cs b/osu.Game.Rulesets.Catch/Mods/CatchModDifficultyAdjust.cs
deleted file mode 100644
index 6643ebadf1..0000000000
--- a/osu.Game.Rulesets.Catch/Mods/CatchModDifficultyAdjust.cs
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Framework.Bindables;
-using osu.Game.Beatmaps;
-using osu.Game.Configuration;
-using osu.Game.Rulesets.Mods;
-
-namespace osu.Game.Rulesets.Catch.Mods
-{
-    public class CatchModDifficultyAdjust : ModDifficultyAdjust
-    {
-        [SettingSource("Drain Rate", "Override the beatmap's set HP")]
-        public override BindableNumber<float> DrainRate { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 1F,
-        };
-
-        [SettingSource("Fruit Size", "Override the beatmap's set CS")]
-        public override BindableNumber<float> CircleSize { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-
-        [SettingSource("Approach Rate", "Override the beatmap's set AR")]
-        public override BindableNumber<float> ApproachRate { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-
-        public override void ApplyToDifficulty(BeatmapDifficulty difficulty)
-        {
-            difficulty.DrainRate = DrainRate.Value;
-            difficulty.CircleSize = CircleSize.Value;
-            difficulty.ApproachRate = ApproachRate.Value;
-            difficulty.OverallDifficulty = ApproachRate.Value;
-        }
-    }
-}
diff --git a/osu.Game.Rulesets.Mania/ManiaRuleset.cs b/osu.Game.Rulesets.Mania/ManiaRuleset.cs
index c4908d1993..520bcfb586 100644
--- a/osu.Game.Rulesets.Mania/ManiaRuleset.cs
+++ b/osu.Game.Rulesets.Mania/ManiaRuleset.cs
@@ -143,7 +143,7 @@ namespace osu.Game.Rulesets.Mania
                         new ManiaModRandom(),
                         new ManiaModDualStages(),
                         new ManiaModMirror(),
-                        new ManiaModDifficultyAdjust(),
+                        new ModDifficultyAdjust(),
                     };
 
                 case ModType.Automation:
diff --git a/osu.Game.Rulesets.Mania/Mods/ManiaModDifficultyAdjust.cs b/osu.Game.Rulesets.Mania/Mods/ManiaModDifficultyAdjust.cs
deleted file mode 100644
index 67554e6b92..0000000000
--- a/osu.Game.Rulesets.Mania/Mods/ManiaModDifficultyAdjust.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Framework.Bindables;
-using osu.Game.Configuration;
-using osu.Game.Rulesets.Mods;
-
-namespace osu.Game.Rulesets.Mania.Mods
-{
-    public class ManiaModDifficultyAdjust : ModDifficultyAdjust
-    {
-        [SettingSource("Overall Difficulty", "Override the beatmap's set OD")]
-        public override BindableNumber<float> OverallDifficulty { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-    }
-}
diff --git a/osu.Game.Rulesets.Osu/Mods/OsuModDifficultyAdjust.cs b/osu.Game.Rulesets.Osu/Mods/OsuModDifficultyAdjust.cs
deleted file mode 100644
index 86ab4579bb..0000000000
--- a/osu.Game.Rulesets.Osu/Mods/OsuModDifficultyAdjust.cs
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Framework.Bindables;
-using osu.Game.Configuration;
-using osu.Game.Rulesets.Mods;
-
-namespace osu.Game.Rulesets.Osu.Mods
-{
-    public class OsuModDifficultyAdjust : ModDifficultyAdjust
-    {
-        [SettingSource("Drain Rate", "Override the beatmap's set HP")]
-        public override BindableNumber<float> DrainRate { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-
-        [SettingSource("Circle Size", "Override the beatmap's set CS")]
-        public override BindableNumber<float> CircleSize { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-
-        [SettingSource("Approach Rate", "Override the beatmap's set AR")]
-        public override BindableNumber<float> ApproachRate { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-
-        [SettingSource("Overall Difficulty", "Override the beatmap's set OD")]
-        public override BindableNumber<float> OverallDifficulty { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-    }
-}
diff --git a/osu.Game.Rulesets.Osu/OsuRuleset.cs b/osu.Game.Rulesets.Osu/OsuRuleset.cs
index 746876b217..b9fa14baa1 100644
--- a/osu.Game.Rulesets.Osu/OsuRuleset.cs
+++ b/osu.Game.Rulesets.Osu/OsuRuleset.cs
@@ -121,7 +121,7 @@ namespace osu.Game.Rulesets.Osu
                     return new Mod[]
                     {
                         new OsuModTarget(),
-                        new OsuModDifficultyAdjust(),
+                        new ModDifficultyAdjust(),
                     };
 
                 case ModType.Automation:
diff --git a/osu.Game.Rulesets.Taiko/Mods/TaikoModDifficultyAdjust.cs b/osu.Game.Rulesets.Taiko/Mods/TaikoModDifficultyAdjust.cs
deleted file mode 100644
index ed76cf77ac..0000000000
--- a/osu.Game.Rulesets.Taiko/Mods/TaikoModDifficultyAdjust.cs
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Framework.Bindables;
-using osu.Game.Configuration;
-using osu.Game.Rulesets.Mods;
-
-namespace osu.Game.Rulesets.Taiko.Mods
-{
-    public class TaikoModDifficultyAdjust : ModDifficultyAdjust
-    {
-        [SettingSource("Drain Rate", "Override the beatmap's set HP")]
-        public override BindableNumber<float> DrainRate { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-
-        [SettingSource("Overall Difficulty", "Override the beatmap's set OD")]
-        public override BindableNumber<float> OverallDifficulty { get; } = new BindableFloat
-        {
-            MinValue = 1,
-            MaxValue = 10,
-            Default = 5,
-            Value = 5,
-            Precision = 0.1F,
-        };
-    }
-}
diff --git a/osu.Game.Rulesets.Taiko/TaikoRuleset.cs b/osu.Game.Rulesets.Taiko/TaikoRuleset.cs
index c4c85c183b..40ce58aeca 100644
--- a/osu.Game.Rulesets.Taiko/TaikoRuleset.cs
+++ b/osu.Game.Rulesets.Taiko/TaikoRuleset.cs
@@ -100,7 +100,7 @@ namespace osu.Game.Rulesets.Taiko
                 case ModType.Conversion:
                     return new Mod[]
                     {
-                        new TaikoModDifficultyAdjust(),
+                        new ModDifficultyAdjust(),
                     };
 
                 case ModType.Automation:
diff --git a/osu.Game/Rulesets/Mods/ModDifficultyAdjust.cs b/osu.Game/Rulesets/Mods/ModDifficultyAdjust.cs
index d1f6bf45b4..532da8a647 100644
--- a/osu.Game/Rulesets/Mods/ModDifficultyAdjust.cs
+++ b/osu.Game/Rulesets/Mods/ModDifficultyAdjust.cs
@@ -5,10 +5,11 @@ using osu.Game.Beatmaps;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics.Sprites;
 using System;
+using osu.Game.Configuration;
 
 namespace osu.Game.Rulesets.Mods
 {
-    public abstract class ModDifficultyAdjust : Mod, IApplicableToDifficulty
+    public class ModDifficultyAdjust : Mod, IApplicableToDifficulty
     {
         public override string Name => @"Difficulty Adjust";
 
@@ -24,20 +25,52 @@ namespace osu.Game.Rulesets.Mods
 
         public override Type[] IncompatibleMods => new[] { typeof(ModEasy), typeof(ModHardRock) };
 
-        public virtual BindableNumber<float> DrainRate { get; }
+        [SettingSource("Drain Rate", "Override the beatmap's set HP")]
+        public BindableNumber<float> DrainRate { get; } = new BindableFloat
+        {
+            MinValue = 1,
+            MaxValue = 10,
+            Default = 5,
+            Value = 5,
+            Precision = 0.1F,
+        };
 
-        public virtual BindableNumber<float> CircleSize { get; }
+        [SettingSource("Circle Size", "Override the beatmap's set CS")]
+        public BindableNumber<float> CircleSize { get; } = new BindableFloat
+        {
+            MinValue = 1,
+            MaxValue = 10,
+            Default = 5,
+            Value = 5,
+            Precision = 0.1F,
+        };
 
-        public virtual BindableNumber<float> ApproachRate { get; }
+        [SettingSource("Approach Rate", "Override the beatmap's set AR")]
+        public BindableNumber<float> ApproachRate { get; } = new BindableFloat
+        {
+            MinValue = 1,
+            MaxValue = 10,
+            Default = 5,
+            Value = 5,
+            Precision = 0.1F,
+        };
 
-        public virtual BindableNumber<float> OverallDifficulty { get; }
+        [SettingSource("Overall Difficulty", "Override the beatmap's set OD")]
+        public BindableNumber<float> OverallDifficulty { get; } = new BindableFloat
+        {
+            MinValue = 1,
+            MaxValue = 10,
+            Default = 5,
+            Value = 5,
+            Precision = 0.1F,
+        };
 
         public virtual void ApplyToDifficulty(BeatmapDifficulty difficulty)
         {
-            difficulty.DrainRate = DrainRate != null ? DrainRate.Value : difficulty.DrainRate;
-            difficulty.CircleSize = CircleSize != null ? CircleSize.Value : difficulty.CircleSize;
-            difficulty.ApproachRate = ApproachRate != null ? ApproachRate.Value : difficulty.ApproachRate;
-            difficulty.OverallDifficulty = OverallDifficulty != null ? OverallDifficulty.Value : difficulty.OverallDifficulty;
+            difficulty.DrainRate = DrainRate.Value;
+            difficulty.CircleSize = CircleSize.Value;
+            difficulty.ApproachRate = ApproachRate.Value;
+            difficulty.OverallDifficulty = OverallDifficulty.Value;
         }
     }
 }