diff --git a/.gitmodules b/.gitmodules
index 8942f2a..9ed2ad8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -15,3 +15,6 @@
 	path = libs/sdl3
 	url = https://github.com/libsdl-org/SDL.git
 	branch = main
+[submodule "libs/catch2"]
+	path = libs/catch2
+	url = https://github.com/catchorg/Catch2.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 88e6d0a..0884798 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,6 +42,17 @@ add_subdirectory(libs/spdlog)
 add_subdirectory(libs/imgui)
 add_subdirectory(libs/imgui-node-editor)
 
+# 4. Catch2
+# Testing framework
+add_subdirectory(libs/catch2)
+# These tests can use the Catch2-provided main
+add_executable(tests SakuraVNE/test/test.cpp)
+target_link_libraries(tests PRIVATE Catch2::Catch2WithMain)
+
+# These tests need their own main
+# add_executable(custom-main-tests test.cpp test-main.cpp)
+# target_link_libraries(custom-main-tests PRIVATE Catch2::Catch2)
+
 # ------------------------------------------------------------------------------
 # SakuraVNE Executable Target
 # ------------------------------------------------------------------------------
diff --git a/SakuraVNE/test/test.cpp b/SakuraVNE/test/test.cpp
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/SakuraVNE/test/test.cpp
@@ -0,0 +1 @@
+
diff --git a/libs/catch2 b/libs/catch2
new file mode 160000
index 0000000..50e9dbf
--- /dev/null
+++ b/libs/catch2
@@ -0,0 +1 @@
+Subproject commit 50e9dbfc4e17d5a26a53584c3fc66facf4197192