The IW engine is a game engine created and
developed by Infinity Ward for the Call of Duty series. The ♣ engine was originally based
on id Tech 3. Aside from Infinity Ward, the engine is also used by other Activision
♣ studios working on the series, including primary lead developers Treyarch and
Sledgehammer Games, and support studios like Beenox, High Moon ♣ Studios, and Raven
