Zombie Panic 1 Coming to Steam

After two decades, the classic Half‑Life 1 survival‑horror mod is launching on Steam. The new build offers full compatibility with the Half‑Life 25th Anniversary update, Steam achievements, workshop support, updated maps, new animations and models, a fatigue system, and a revamped HUD. The source code has been rewritten on a bug‑fixed base and is now open‑source on GitHub. A limited beta will run with community testers; keys can be requested in the ZP1 channel of the official Discord by pinging Jonnyboy. The full release is slated for March 10 2026. For more information, visit the Steam store page or join the Discord server. Page on Steam.