Official co-op rules
Official FAQ: online co-op supports up to 4 players. Add friends by nickname, invite them to your room and start. Experience is shared and you can revive a fallen teammate by standing next to them.
News 2026-10-08: online co-op for up to 4 with your friends list, plus daily, weekly, monthly, yearly and all-time leaderboards.
News 2026-10-12: in co-op, if the host switches tabs the run pauses for everyone.
Peer connection note (official legal text)
English home legal text (as archived) says group games connect browsers directly like a video call, so each player may see the other’s IP; play in a group only with people you know. If direct connection fails, the match goes through Firebase servers.
Offline itch download
itch.io says the offline unzipped index.html version is solo only and saves in your browser. For co-op, cloud saves and leaderboards, play online at pokesurvivor.com.