diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..47c5596
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "third_party/game2004api"]
+	path = third_party/game2004api
+	url = git@git.kingsome.cn:server/game2004api.git
diff --git a/third_party/game2004api b/third_party/game2004api
new file mode 160000
index 0000000..c988bdc
--- /dev/null
+++ b/third_party/game2004api
@@ -0,0 +1 @@
+Subproject commit c988bdc6ef26fb12fa684134bc623617acfbbb23