diff --git a/SDL3-CS.Tests/SDL3-CS.Tests.csproj b/SDL3-CS.Tests/SDL3-CS.Tests.csproj
index db77335..392e88b 100644
--- a/SDL3-CS.Tests/SDL3-CS.Tests.csproj
+++ b/SDL3-CS.Tests/SDL3-CS.Tests.csproj
@@ -22,6 +22,15 @@
 
   <ItemGroup>
     <ProjectReference Include="..\SDL3-CS\SDL3-CS.csproj"/>
+    <ProjectReference Include="..\SDL3_image-CS\SDL3_image-CS.csproj"/>
+    <ProjectReference Include="..\SDL3_ttf-CS\SDL3_ttf-CS.csproj"/>
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="..\External\SDL_image\test\sample.png">
+      <Link>sample.png</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
 </Project>
diff --git a/SDL3-CS.Tests/TestImage.cs b/SDL3-CS.Tests/TestImage.cs
new file mode 100644
index 0000000..845cce2
--- /dev/null
+++ b/SDL3-CS.Tests/TestImage.cs
@@ -0,0 +1,46 @@
+// 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 NUnit.Framework;
+using static SDL.SDL3_image;
+using static SDL.SDL3;
+
+namespace SDL.Tests
+{
+    public unsafe class TestImage
+    {
+        [Test]
+        public void TestBasic()
+        {
+            SDL_Init(0);
+
+            const IMG_InitFlags flags = IMG_InitFlags.IMG_INIT_PNG;
+            var actual = IMG_Init(flags);
+
+            try
+            {
+                Assert.That(actual, Is.EqualTo(flags), SDL_GetError);
+                Assert.That(IMG_Version(), Is.EqualTo(SDL_IMAGE_VERSION));
+
+                Assume.That("sample.png", Does.Exist);
+                var image = IMG_Load("sample.png");
+
+                try
+                {
+                    Assert.That(image != null, SDL_GetError);
+                    Assert.That(image->w, Is.EqualTo(23));
+                    Assert.That(image->h, Is.EqualTo(42));
+                }
+                finally
+                {
+                    SDL_DestroySurface(image);
+                }
+            }
+            finally
+            {
+                IMG_Quit();
+                SDL_Quit();
+            }
+        }
+    }
+}
diff --git a/SDL3-CS.Tests/TestTTF.cs b/SDL3-CS.Tests/TestTTF.cs
new file mode 100644
index 0000000..bb3a625
--- /dev/null
+++ b/SDL3-CS.Tests/TestTTF.cs
@@ -0,0 +1,45 @@
+// 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 NUnit.Framework;
+using static SDL.SDL3_ttf;
+using static SDL.SDL3;
+
+namespace SDL.Tests
+{
+    public unsafe class TestTTF
+    {
+        [Test]
+        public void TestBasic()
+        {
+            SDL_Init(0);
+
+            bool init = TTF_Init();
+
+            try
+            {
+                Assert.That(init, Is.True, SDL_GetError);
+                Assert.That(TTF_Version(), Is.EqualTo(SDL_TTF_VERSION));
+
+                Assume.That(@"C:\Windows\Fonts\times.ttf", Does.Exist);
+                var font = TTF_OpenFont(@"C:\Windows\Fonts\times.ttf", 12f);
+
+                try
+                {
+                    Assert.That(font != null, SDL_GetError);
+                    string? name = PtrToStringUTF8(TTF_GetFontFamilyName(font)); // TODO: fix Unsafe_ generation
+                    Assert.That(name, Is.EqualTo("Times New Roman"));
+                }
+                finally
+                {
+                    TTF_CloseFont(font);
+                }
+            }
+            finally
+            {
+                TTF_Quit();
+                SDL_Quit();
+            }
+        }
+    }
+}