About O3
O3 is a single player survival survival game. It was developed by Zach Green and was released on October 13, 2024.
Project 1 In a world where science has failed us the world is full of a toxic molecule called O3. Humans have come together to create a perpetual motion train in order to survive the new unliveable earth. Your goal as the player is to manage resources, relationships and navigate the intricate story where your choices matter!






Games Like O3
Looking for games like O3? Here are top survival survival recommendations, selected from player-similarity data — start with SurviRail: Deep Space, Rise of Atom or The Long Journey Home.
Frequently Asked Questions
O3 is a survival survival game. Common tags for O3 include indie.
O3 is available on Windows.
O3 was released on October 13, 2024.
O3 was developed by Zach Green.
O3 is a single player game.
Similar games include SurviRail: Deep Space, Rise of Atom, The Long Journey Home, Terraformers, Habitat and others.












