diff --git a/Dalamud/Dalamud.csproj b/Dalamud/Dalamud.csproj
index b9b453f89..e8c2516af 100644
--- a/Dalamud/Dalamud.csproj
+++ b/Dalamud/Dalamud.csproj
@@ -73,8 +73,6 @@
           <PrivateAssets>all</PrivateAssets>
         </PackageReference>
         <PackageReference Include="MinSharp" />
-        <PackageReference Include="SharpDX.Direct3D11" />
-        <PackageReference Include="SharpDX.Mathematics" />
         <PackageReference Include="Newtonsoft.Json" />
         <PackageReference Include="Serilog" />
         <PackageReference Include="Serilog.Sinks.Async" />
diff --git a/Dalamud/Interface/UiBuilder.cs b/Dalamud/Interface/UiBuilder.cs
index e38537018..6e4740b22 100644
--- a/Dalamud/Interface/UiBuilder.cs
+++ b/Dalamud/Interface/UiBuilder.cs
@@ -12,7 +12,6 @@ using Dalamud.Interface.FontIdentifier;
 using Dalamud.Interface.Internal;
 using Dalamud.Interface.ManagedFontAtlas;
 using Dalamud.Interface.ManagedFontAtlas.Internals;
-using Dalamud.Plugin;
 using Dalamud.Plugin.Internal.Types;
 using Dalamud.Utility;
 using Serilog;
@@ -150,13 +149,6 @@ public interface IUiBuilder
     /// </summary>
     public ImFontPtr FontMono { get; }
 
-    /// <summary>
-    /// Gets the game's active Direct3D device.
-    /// </summary>
-    // TODO: Remove it on API11/APIXI, and remove SharpDX/PInvoke/etc. dependency from Dalamud.
-    [Obsolete($"Use {nameof(DeviceHandle)} and wrap it using DirectX wrapper library of your choice.")]
-    SharpDX.Direct3D11.Device Device { get; }
-
     /// <summary>Gets the game's active Direct3D device.</summary>
     /// <value>Pointer to the instance of IUnknown that the game is using and should be containing an ID3D11Device,
     /// or 0 if it is not available yet.</value>
@@ -302,8 +294,6 @@ public sealed class UiBuilder : IDisposable, IUiBuilder
     private IFontHandle? monoFontHandle;
     private IFontHandle? iconFontFixedWidthHandle;
 
-    private SharpDX.Direct3D11.Device? sdxDevice;
-
     /// <summary>
     /// Initializes a new instance of the <see cref="UiBuilder"/> class and registers it.
     /// You do not have to call this manually.
@@ -493,12 +483,6 @@ public sealed class UiBuilder : IDisposable, IUiBuilder
                     this.InterfaceManagerWithScene?.MonoFontHandle
                     ?? throw new InvalidOperationException("Scene is not yet ready.")));
 
-    /// <inheritdoc/>
-    // TODO: Remove it on API11/APIXI, and remove SharpDX/PInvoke/etc. dependency from Dalamud.
-    [Obsolete($"Use {nameof(DeviceHandle)} and wrap it using DirectX wrapper library of your choice.")]
-    public SharpDX.Direct3D11.Device Device =>
-        this.sdxDevice ??= new(this.InterfaceManagerWithScene!.Backend!.DeviceHandle);
-
     /// <inheritdoc/>
     public nint DeviceHandle => this.InterfaceManagerWithScene?.Backend?.DeviceHandle ?? 0;
 
diff --git a/Dalamud/Storage/Assets/DalamudAssetPurpose.cs b/Dalamud/Storage/Assets/DalamudAssetPurpose.cs
index e6c7bd920..69de1f871 100644
--- a/Dalamud/Storage/Assets/DalamudAssetPurpose.cs
+++ b/Dalamud/Storage/Assets/DalamudAssetPurpose.cs
@@ -11,12 +11,12 @@ public enum DalamudAssetPurpose
     Empty = 0,
     
     /// <summary>
-    /// The asset is a .png file, and can be purposed as a <see cref="SharpDX.Direct3D11.Texture2D"/>.
+    /// The asset is a .png file, and can be purposed as a <see cref="TerraFX.Interop.DirectX.ID3D11Texture2D"/>.
     /// </summary>
     TextureFromPng = 10,
-    
+
     /// <summary>
-    /// The asset is a raw texture, and can be purposed as a <see cref="SharpDX.Direct3D11.Texture2D"/>.
+    /// The asset is a raw texture, and can be purposed as a <see cref="TerraFX.Interop.DirectX.ID3D11Texture2D"/>.
     /// </summary>
     TextureFromRaw = 1001,
 
diff --git a/Dalamud/Utility/VectorExtensions.cs b/Dalamud/Utility/VectorExtensions.cs
deleted file mode 100644
index f617c8420..000000000
--- a/Dalamud/Utility/VectorExtensions.cs
+++ /dev/null
@@ -1,51 +0,0 @@
-using System.Numerics;
-
-namespace Dalamud.Utility;
-
-/// <summary>
-/// Extension methods for System.Numerics.VectorN and SharpDX.VectorN.
-/// </summary>
-public static class VectorExtensions
-{
-    /// <summary>
-    /// Converts a SharpDX vector to System.Numerics.
-    /// </summary>
-    /// <param name="vec">Vector to convert.</param>
-    /// <returns>A converted vector.</returns>
-    public static Vector2 ToSystem(this SharpDX.Vector2 vec) => new(x: vec.X, y: vec.Y);
-
-    /// <summary>
-    /// Converts a SharpDX vector to System.Numerics.
-    /// </summary>
-    /// <param name="vec">Vector to convert.</param>
-    /// <returns>A converted vector.</returns>
-    public static Vector3 ToSystem(this SharpDX.Vector3 vec) => new(x: vec.X, y: vec.Y, z: vec.Z);
-
-    /// <summary>
-    /// Converts a SharpDX vector to System.Numerics.
-    /// </summary>
-    /// <param name="vec">Vector to convert.</param>
-    /// <returns>A converted vector.</returns>
-    public static Vector4 ToSystem(this SharpDX.Vector4 vec) => new(x: vec.X, y: vec.Y, z: vec.Z, w: vec.W);
-
-    /// <summary>
-    /// Converts a System.Numerics vector to SharpDX.
-    /// </summary>
-    /// <param name="vec">Vector to convert.</param>
-    /// <returns>A converted vector.</returns>
-    public static SharpDX.Vector2 ToSharpDX(this Vector2 vec) => new(x: vec.X, y: vec.Y);
-
-    /// <summary>
-    /// Converts a System.Numerics vector to SharpDX.
-    /// </summary>
-    /// <param name="vec">Vector to convert.</param>
-    /// <returns>A converted vector.</returns>
-    public static SharpDX.Vector3 ToSharpDX(this Vector3 vec) => new(x: vec.X, y: vec.Y, z: vec.Z);
-
-    /// <summary>
-    /// Converts a System.Numerics vector to SharpDX.
-    /// </summary>
-    /// <param name="vec">Vector to convert.</param>
-    /// <returns>A converted vector.</returns>
-    public static SharpDX.Vector4 ToSharpDX(this Vector4 vec) => new(x: vec.X, y: vec.Y, z: vec.Z, w: vec.W);
-}
diff --git a/Directory.Packages.props b/Directory.Packages.props
index 903a8ee88..481e7591d 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -27,8 +27,6 @@
 
     <!-- DirectX / Win32 -->
     <PackageVersion Include="TerraFX.Interop.Windows" Version="10.0.22621.2" />
-    <PackageVersion Include="SharpDX.Direct3D11" Version="4.2.0" />
-    <PackageVersion Include="SharpDX.Mathematics" Version="4.2.0" />
     <PackageVersion Include="Microsoft.Windows.CsWin32" Version="0.3.183" />
 
     <!-- Logging -->