Death match time?

Is the maximum time for a workshop death match customization room 90 minutes? Can’t increase time?

not start game mode…

I believe the timer is definitely shorter if you never actually “start game mode” so you are probably right on the 90 minutes part for that. But if the game mode was started, but you paused the match timer with your script, then the game will force shut down after 4 and a half hours. That is the true maximum time.