Previously called the "QUAKE 3 Engine" and one of the most successful licensed engines in history, id Tech 3 was the engine used to create games such as Quake II Arena, Return to Castle Wolfenstein and Soldier of Fortune II: Double Helix. id Tech 3 introduced shaders, curved surfaces, 32-bit color, special effects, bleeding-edge networking and super-smooth speedy hardware rendering.
Best engine ever seen. This engine gives me alot of fun in my young age. I play with Q3, CoD1 / UO, CoD2. That was 8 years of gaming on one engine. New engines from Call of Duties suc**. Classic and good. Rate 10/10