1 min readUpdated Oct 4, 2026

How To Edit The Server Config On Your Zombie Panic! Source Server

Settings that aren't on the Settings page, such as the warmup round, AFK timers and network rates, live in your server's server_custom.cfg file. It starts as a copy of the game's own server.cfg, with a comment explaining each setting.

Editing The Server Config

  1. 1
    Log in to Bropanel and Stop your server.
  2. 2
    In the sidebar, go to Files and open the zps/cfg folder.
  3. 3
    Open server_custom.cfg and change the values you want, for example sv_zps_warmup 60.
  4. 4
    Save the file and start your server.
SettingWhat it does
sv_zps_warmupSeconds of warmup before the first round, 0 turns it off
sv_zps_afk_timeMinutes a player can be AFK before they're moved to the lobby
sv_zps_antipanicSeconds at round start before survivors can use panic
sv_voiceenable0 turns voice chat off
sv_mapcycle_random1 plays the map cycle in random order

Note

Edit server_custom.cfg, not server.cfg: game updates replace server.cfg, and your server doesn't use it. The server name, passwords, slots, Hardcore mode, time limit, max rounds, infection chance and all talk come from the Settings page and override anything you write for them in server_custom.cfg.