Sync or Sink

Sync or Sink is a co-op survival game set aboard an old Cold War submarine. You and your partner must complete urgent repairs, manage limited resources and keep the systems running, while unable to see each other.

Communicate to survive

You rely on a crackling walkie-talkie: one player speaks while the other listens. Relay codes, fix malfunctions and guide each other through a maze of rust, steam and shadows. Clear sight is unavailable, so you must depend on your partner’s voice.

Race against time

Every second brings you closer to disaster, with compartments flooding, engines failing and minds fraying. Complete tasks quickly and stay calm under pressure; mistakes can lead to the ocean swallowing the submarine.