Does GRAIN ROT Have Online Co-op?

Yes. GRAIN ROT supports online co-op. Patch 1.04 added lobby privacy and player-count settings, and Patch 1.05 fixed a friends-only lobby join bug.

Lobby settings

Patch 1.04 added lobby privacy and maximum-player settings, plus a lobby-management menu. The menu includes player microphone-volume controls and options to kick or ban players.

Friends-only join fix

Patch 1.05 fixed a bug that blocked players from joining friends-only lobbies. This describes the listed patch fix; it does not guarantee that future versions will be problem-free.

Evidence boundary

The reviewed evidence does not meet the publication threshold for player hosting, public matchmaking, a fixed player limit, cross-platform play, Remote Play Together, or copy requirements. The lobby status here was checked through Patch 1.05 and the official FAQ on 2026-08-12.

Related guides

• GRAIN ROT solo support
• GRAIN ROT guides