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.
id Tech 3 is one of the most successful game engines of all time
Call of Duty 2 doesn't use the iD Tech 3 engine. :\ The original did but everything following 2 uses Inifinity Ward's proprietary engine.
IW Engine is a modified id Tech 3, it still uses the Quake 3 level editor and map format and still has network code from Quake 3. The biggest change with IW Engine is it's custom animation system and it's new rendering engine.
This screen shot doesnt look similar to the other games
every other one uses that same polygonal models and werid textures
What engine does Call of Duty 3 run on?
IW Engine = Combined& Modif. Id Tech 3