How to Install Steam Workshop Mods on Your DayZ Server

How to add mods to your DayZ server — Workshop download, -mod parameter, bikey files, and load order.

Mod Installation Steps

Subscribe on the Steam Workshop for DayZ. Files download to steamapps/workshop/content/221100/<WorkshopID>/.

Upload the mod folder to the server root, renamed with @ prefix (e.g., @CF, @VPPAdminTools):

cf.bikey

vppadmintools.bikey

Copy every mod's .bikey file from its keys/ subfolder into the server's root keys/ folder.

⚠️ Missing bikeys = players get kicked with "signature verification failed."

Add the -mod= parameter with all mods semicolon-separated:

-mod=@CF;@VPPAdminTools;@Trader

Load order matters — dependencies must come first (e.g., @CF before @CommunityOnlineTools).

Restart the server. Players using DZSA Launcher auto-download required mods on join.

For mods that only run on the server (not downloaded by clients):

-servermod=@MyServerMod

Mod	Workshop ID	Must load before
CF (Community Framework)	`1559212036`	Most community mods
DayZ-Expansion-Core	varies	DayZ Expansion modules