CS:Legacy is a free community-made classic old-school tactical shooter, built from the ground up on Valve's public 2013 SDK, with 100% custom game code and game assets. Not affiliated with Valve, but developed by ex-CSPromod devs. After the exciting Global Offensive transition to CS2, we wanted to bring an old-school experience back to life more than ever to keep the Classic CS Legacy alive. Not as a mod, but as a full game. The game is built on Valve's official 2013 Source Engine SDK codebase, with our own major rewrites to the renderer, shaders and various systems.

Announcement trailer