One Hour One Life

One Hour One Life is a 2018 massively multiplayer online game developed and published by Jason Rohrer. Each player in the survival game lives for, at most, 60 minutes in a large, persistent world, with each minute representing a year of life. They must gather and grow food, craft tools and build societies in order to survive. The game's source code and assets are placed into the public domain, and are freely available on GitHub, with accounts being sold for access to the primary servers hosting the game. Originally available only on the website onehouronelife.com, it was later released on Steam in November 2018. The main ideas influencing the game's design are player cooperation, sustainability and the prospect of developing a civilization. The game has had a positive reception, with critics comparing the game favorably to Don't Starve and praising its social aspects. Rohrer has stressed the continued development of the game until at least 2020. The game stopped development on 11 November 2025 so Rohrer could work on other projects.