Sub Optimal Co.

Sub Optimal Co. is a slow-paced submarine navigation game for up to six players, playable alone or with friends. You guide a submarine through tight cave systems to collect a target, then return to base without hitting the cave walls too often.

Navigate the caves

You spend most of each dive inside the submarine, where players can move freely and operate its consoles. Use cameras and sonar to locate the sub, then steer by turning, tilting, rotating and adjusting its speed. You have limited tools for seeing or hearing your position in the caves, so each move requires care. If the submarine hits the walls too often, it sinks and the dive fails.

There are 20 cave systems, and each launch or restart randomly selects one. Every cave has a target to reach before returning to base.

Play together

You can operate the submarine alone, but the game is more effective with helping hands on board. Invite up to five friends; the game uses peer-to-peer connections, and bots or NPCs cannot join the party. It is designed for slow-paced dives while chatting with friends, and can be played using only a mouse.

Mission rewards

Successful mission lines unlock new ranks, uniforms, beards and cups for your character.