The official maximum number of players that can play PEAK together in cooperative multiplayer is 4 players. The game is designed and balanced for up to four players climbing together as a team. However, there is a popular mod called the PEAK Unlimited Mod that allows players to increase the player limit. By using this mod, the maximum number of players can be expanded up to 20 players or more, though performance may degrade depending on the host's hardware and the number of players. In summary:
- Official max players: 4
- With PEAK Unlimited Mod: up to 20 or more players (depending on system performance)
Only the host needs to install the mod for this extended player count to work in a session.
