diff --git a/scripts/mysql/045_remove_default_self_games.sql b/scripts/mysql/045_remove_default_self_games.sql
new file mode 100644
index 00000000..e58af010
--- /dev/null
+++ b/scripts/mysql/045_remove_default_self_games.sql
@@ -0,0 +1,31 @@
+SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+USE hyapp_game;
+
+-- 清理旧初始化脚本写入的自研游戏展示入口；不删除对局、钱包、outbox 和奖池流水，避免破坏历史业务事实。
+DELETE FROM game_display_rules
+WHERE app_code = 'lalu'
+  AND game_id IN ('dice', 'rock');
+
+DELETE FROM game_self_game_configs
+WHERE app_code = 'lalu'
+  AND game_id IN ('dice', 'rock');
+
+DELETE FROM game_self_game_pools
+WHERE app_code = 'lalu'
+  AND game_id IN ('dice', 'rock');
+
+DELETE FROM game_catalog
+WHERE app_code = 'lalu'
+  AND game_id IN ('dice', 'rock');
+
+DELETE p
+FROM game_platforms p
+WHERE p.app_code = 'lalu'
+  AND p.platform_code = 'dice'
+  AND NOT EXISTS (
+    SELECT 1
+    FROM game_catalog c
+    WHERE c.app_code = p.app_code
+      AND c.platform_code = p.platform_code
+  );