CS:Legacy is a fully standalone remake of Counter-Strike 1.6, built from the ground up with 100% custom code and game assets. After the exciting Global Offensive transition to CS2, we wanted to bring Classic Counter-Strike 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.