: A popular free-to-play fork that offers more freedom, custom content, and active moderation to prevent griefing on its own servers.

The survival game (OHOL) can be downloaded for free under specific conditions, though official server access requires a purchase. Developed by Jason Rohrer, the game's code and assets were placed in the public domain , allowing it to be legally available as free software for those who wish to build it from the source or play on unofficial servers. How to Get One Hour One Life for Free

: Several free-to-play versions and mods based on the original code exist.

: A version that was previously available for free on platforms like Itch.io , though recent user reports suggest these legacy versions may face server maintenance issues.