diff --git a/.gitmodules b/.gitmodules
index fdf7f92..6ec731a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -44,3 +44,6 @@
 [submodule "libs/imgui-filebrowser"]
 	path = libs/imgui-filebrowser
 	url = https://github.com/AirGuanZ/imgui-filebrowser.git
+[submodule "libs/googletest"]
+	path = libs/googletest
+	url = https://github.com/google/googletest.git
diff --git a/libs/googletest b/libs/googletest
new file mode 160000
index 0000000..d6fb5e3
--- /dev/null
+++ b/libs/googletest
@@ -0,0 +1 @@
+Subproject commit d6fb5e3bf76c0363d7519373a07c2435e57c1073