The game supports online groups of up to four. Use a cloud game account and the Friends menu; this Wiki has no game login or access to your save.
Start with friends
- Sign into the game’s cloud account on the developer’s site.
- Open Friends and add your friend by their nickname.
- Invite them to your room, check that everyone has joined, then start the group run.
- Keep an internet connection available. Offline browser play does not provide online multiplayer.
Check the simple causes first
If a friend appears offline or an invitation does not arrive, check the device clock and time zone. The October 14 source changelog includes a fix for clock-related presence problems.
The same changelog describes fixes for players waiting on each other’s choices and invisible enemies after a rift. If you are comparing an older guide or cached copy, check the game’s update prompt and the upstream release notes. Do not erase browser saves to force an update.
Connections can depend on the local network and browser. A failed connection is not proof that your collection or account is missing.
Password and account recovery
The October 14 changelog adds linking an existing username/password account to Gmail. If you linked it, using Sign in with Google with that Gmail is intended to open the same account.
The game’s login notice says an unlinked account cannot be recovered through that Google route. Do not type passwords into this Wiki or an unofficial recovery form; we cannot restore the developer’s accounts.
Sources & snapshot scope
Reviewed 2026-10-15. Mechanics and data refer to the local source snapshot b297089; later live changes may differ. Source inspection is separate from gameplay testing.