Killing Floor 2 has a real Steam Workshop for maps, and the delivery is nicer than most games: the server downloads the map and hands it to each player when they connect. Nobody has to subscribe or download anything first, they just join.
Add a Workshop map
- Find the map on the Steam Workshop and copy the numeric id from its URL (the ?id= number).
- Paste that id into the Workshop map field on the deploy page.
- Deploy. The server subscribes to the map, downloads it, and boots straight into it. Players get it automatically on join.
The one catch: unranked
Running any custom content makes the server unranked, so players earn no perk XP on a custom map. That is a Tripwire rule. Your existing perk levels live on your Steam account and are never affected. If perk XP matters for the session, stick to the official maps.
Good to know
- Use a map (a KF- item), not a mutator id, in the Workshop map field. The server boots into the first map you give it.
- Big custom maps take a moment to reach a new player the first time they connect, then it is cached.