The Operative: No One Lives Forever
The Operative: No One Lives Forever (PC, 2000) has an official source code release, osgcc/no-one-lives-forever, and 3 other public projects, including a matching decompilation and an open-source reimplementation.
Data checked 2026-10-13 · unbaked registry
Projects
Monolith's acclaimed 3d FPS, The Operative: No One Lives Forever.
development complete; status playable
LithTech Jupiter System
WIP, unplayable ()
The Operative: No One Lives Forever (2000) by Monolith Productions, Inc.
Wikipedia: open-source code, proprietary assets; source released 2010 by/for Monolith Productions. In 2001, Monolith Productions released a set of editing tools for No One Lives Forever that included the level editor and model editor used…
What you need
You need your own copy of the game: these projects ship code only.
More on PC
Found via osgameclones.com/, SubmitGame/awesome-decomp-games, en.wikipedia.org/wiki/List_of_commercial_video_g, noonelivesforever.com/downloads/, pc.ign.com/articles/095/095995p1.html
GitHub data checked 2026-10-13. Notes are summaries from the research pass; the project pages are the authority.