diff --git a/.gitignore b/.gitignore
index 231cecc..aacadd7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,13 @@
 build/
 build-*/
 .env
+
+# Windows game client + data assets, kept locally for end-to-end login/game
+# testing but not part of the server source tree.
+/Client/
+/3Ddata/
+/3Ddata.zip
+/KTRose_pre-evo.zip
+
+# Claude Code project-local config
+/.claude/