The game follows two robot friends, Zero and One, who have crash-landed on an abandoned planet. In order to escape, they must make their way through the ruined remains of the planet to get back to their ship. On the desolate grey planet, bits of green remain in sprouts that have somehow survived. As Zero and One proceed towards their spaceship, they help regrow life on the dead planet.
Zero & One is a cooperative puzzle-solving adventure game. The key mechanics are platforming, collecting resources, and solving puzzles. Each player controls a robot that can move, jump, and use a resource. For Zero, the resource is water, and for One the resource is light. Players work together in order to solve puzzles and advance towards their ship.