diff --git a/3rdparty/rainterface/CMakeLists.txt b/3rdparty/rainterface/CMakeLists.txt
new file mode 100644
index 0000000000..bd142ac5a9
--- /dev/null
+++ b/3rdparty/rainterface/CMakeLists.txt
@@ -0,0 +1,10 @@
+add_library(rainterface
+	RA_Consoles.h
+	RA_Emulators.h
+	RA_Interface.cpp
+	RA_Interface.h
+)
+
+target_include_directories(rainterface PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}")
+target_include_directories(rainterface INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}")
+
diff --git a/cmake/SearchForStuff.cmake b/cmake/SearchForStuff.cmake
index 6b8ddf5c32..f4d88a186b 100644
--- a/cmake/SearchForStuff.cmake
+++ b/cmake/SearchForStuff.cmake
@@ -154,6 +154,9 @@ if(QT_BUILD)
 	# rcheevos backend for RetroAchievements.
 	if(USE_ACHIEVEMENTS)
 		add_subdirectory(3rdparty/rcheevos EXCLUDE_FROM_ALL)
+		if(WIN32)
+			add_subdirectory(3rdparty/rainterface EXCLUDE_FROM_ALL)
+		endif()
 	endif()
 
 	# Discord-RPC library for rich presence.
diff --git a/pcsx2/CMakeLists.txt b/pcsx2/CMakeLists.txt
index 55667c9828..3f0656ad60 100644
--- a/pcsx2/CMakeLists.txt
+++ b/pcsx2/CMakeLists.txt
@@ -884,6 +884,15 @@ if(USE_ACHIEVEMENTS)
 	target_link_libraries(PCSX2_FLAGS INTERFACE
 		rcheevos
 	)
+	if(WIN32)
+		# RAIntegration is only supported on Windows.
+		target_compile_definitions(PCSX2_FLAGS INTERFACE
+			ENABLE_RAINTEGRATION
+		)
+		target_link_libraries(PCSX2_FLAGS INTERFACE
+			rainterface
+		)
+	endif()
 endif()
 if(USE_DISCORD_PRESENCE)
 	target_compile_definitions(PCSX2_FLAGS INTERFACE