Player count
The main game is announced for solo play or online co-op with up to four players. Players can explore together and work on a shared Cloud Cruiser.
The 2026 Steam Next Fest Demo was single player. It does not provide a multiplayer setup route.
Player-hosted sessions
The developer describes the Early Access model as player-hosted client-server co-op. One player hosts the session rather than every player independently hosting the same world.
Dedicated servers and larger groups
Dedicated servers have not been promised. On October 8, the developer said dedicated servers and larger groups might come during Early Access, but could not guarantee either.
The announced four-player limit should not be read as support for six to ten players.
Where co-op progress is stored
In the developer’s May 4 explanation, the shared save is stored on the host PC. A client wanting to continue separately without the host would need the host’s save file.
Host-owned shared progress does not mean the entire game has only one save slot. Save locations and the joining/invitation flow should follow the released build.