diff --git a/config/params.ini b/config/params.ini
index f4dce06..a877790 100644
--- a/config/params.ini
+++ b/config/params.ini
@@ -70,7 +70,11 @@ d2r_path=C:\Program Files (x86)\Diablo II Resurrected
 ; max_consecutive_fails: stop bot after this many failed runs in a row
 max_consecutive_fails=5
 ; max_game_length_s: emergency timeout per run/game
-max_game_length_s=600
+; 900: a full Chaos Sanctuary clear (3 seals + bosses + loot) takes ~10 min;
+; 600 force-quit a game while literally waiting for Diablo to spawn (2026-06-10).
+; Genuinely stuck games are caught much earlier by max_maintenance_time_s and
+; approach step timeouts.
+max_game_length_s=900
 ; max_maintenance_time_s: if the town maintenance loop (heal/buy/stash/repair) takes
 ; longer than this many seconds, save-and-exit and rejoin a fresh game.
 ; Prevents the bot staying stuck in A5 town forever when NPCs or pathing fail.