Playing with friends: invites, rooms, LAN and join errors
Updated · Multiplayer
Quick answer
Open the in-game phone and invite Steam friends directly (added Demo 0.1.6), or pick a room from the public list. You can join a room between rounds (0.1.7). The November 10 build adds LAN mode and custom rooms with ~20 settings — player count, number of teachers, item spawn rates. If you "can't join" or see "version too low", both players must be on the same build: restart Steam to pull the update, then retry. There's no crossplay because there's only a PC version.
Three ways in
Steam friend invite — from the in-game phone (0.1.6). Fastest for a private group.
Public room list — refresh speed was improved on day one; rooms showing 0/6 were a bug fixed in 0.1.9.
LAN — launch feature, for same-network parties.
Custom rooms at launch
The October 27 post lists roughly 20 adjustable settings: player count (up to 8), number of teachers, item spawn rates and more. That’s the official answer to “the teacher is too strong” — turn item spawns up or teachers down for your group.
Troubleshooting (from the forum)
Symptom
What to do
Can’t join / room not found
Both players update to the same build (restart Steam), then the host recreates the room
“Version too low”
Same fix — one of you is on an older patch
Stuck on the loading bar
Fixed twice (0.1.4, 0.1.9); if it recurs, back out and rejoin from the list
Black screen / crash on start
Reported by several players; check the Steam page’s minimum specs (GTX 750 Ti, 4 GB RAM) and update GPU drivers
Lag / disconnects
Server capacity was expanded in 0.1.6; players in China use accelerators. Nothing else official
20-player rooms
Those are mods or private servers, not a supported feature — the launch cap is 8
FAQ
How do I invite a friend?
In the lobby, open the phone and send a Steam friend invite. Your friend accepts from Steam and lands in your room.
Can we join mid-match?
Not mid-round. Since 0.1.7 new players slot in when the current round ends.
What does 'version too low' mean?
Your builds differ. Both of you: close the game, let Steam finish updating, relaunch. The demo was patched almost daily, which is why this came up so often.
Is there a room code?
Not in the demo — invites go through Steam friends or the public list. Custom rooms arrive at launch; whether they use codes wasn't specified.
Can we play on LAN?
Yes from November 10 — LAN mode is in the launch feature list.
Is it cross-platform?
No. Windows only, so everyone's on Steam.
Does it have voice chat?
Yes, built in. A 0.1.6 fix addressed players not hearing others after joining.
Checked against the current version on · Medium confidence — consistent community reports, not officially confirmed. Spotted something outdated? Tell us.
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