diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..7d7e24d
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "third_party/game2001"]
+	path = third_party/game2001
+	url = git@git.kingsome.cn:server/game2001.git
diff --git a/third_party/game2001 b/third_party/game2001
new file mode 160000
index 0000000..cdc6f0f
--- /dev/null
+++ b/third_party/game2001
@@ -0,0 +1 @@
+Subproject commit cdc6f0ffd029086b9708b3937b0879bbd9dd9e19