Half-Life Legacy is a mod by The Phoenix Project Software that restores and polishes Valve’s original Half-Life campaign. Its stated aim is to preserve the feel of the 1998 release while correcting visual issues such as Z-fighting. The project also brings features from the HL25 engine alongside restorations previously made for the original version.
The mod adds Steam Achievements, including awards for completing chapters and others placed throughout the game, as well as Steam Stats and Rich Presence for Steam and Discord. Its speedrunning focus is clear: Half-Life Legacy removes the bunnyhop speed-cap, letting players build speed without that restriction. Autojump is another optional addition, while enhanced controller support uses Steam Input.
Other additions shape how the classic game looks and feels rather than changing its premise. Dynamic weapon lighting, viewmodel bob tilt, OpenGL texture filtering, and HD-compatible HUD scaling are among the listed options. Players can also choose a VGUI2 implementation or a censorship filter modeled on the 1998 German release. The result is a restoration mod that pairs compatibility and polish with modern platform features and configurable touches. Its exact content may differ from the original Half-Life experience.
