From 58a7878f60d85fd1540a942d8ca748de7d51a058 Mon Sep 17 00:00:00 2001
From: aclist <92275929+aclist@users.noreply.github.com>
Date: Sat, 20 Jun 2026 18:26:34 +0900
Subject: [PATCH] fix: append mission param dynamically (#372)

---
 dzgui/api/steam.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dzgui/api/steam.py b/dzgui/api/steam.py
index 397080c..cc9e99d 100644
--- a/dzgui/api/steam.py
+++ b/dzgui/api/steam.py
@@ -170,8 +170,10 @@ def launch_offline(
         "-skipintro",
         f"-name={name}",
         f"-mod={symlinks}",
-        f"-mission={mission}",
     ]
+    if len(mission) > 0:
+        arg = f"-mission={mission}"
+        params.append(arg)
     proc = subprocess.run([*client_args, *params])
     return proc.returncode