OneTank

Online co-op for four players

OneTank is an online co-op diving game for up to four players on PC. Your group explores underwater caves and ruins, collects treasure, and tries to bring the haul back together. All four divers share one portable oxygen tank, with hoses connecting each diver to the supply.

Talking uses oxygen

Communication costs air. Speaking through a microphone while connected to the tank uses oxygen from the team’s shared supply, and louder speech burns more. Giving directions or calling for help can help the group, but a loud conversation also leaves everyone with less air for the dive.