There are 12 games made with IW Engine. The top 10 game studios using this engine are: Activision Publishing with 12 games, Treyarch - 8 games, Infinity Ward - 6 games, n-Space - 5 games, Square Enix - 3 games, Eurocom Entertainment Software - 2 games, Raven Software - 2 games, Blizzard Albany - 1 games, Rebellion - 1 games, Sledgehammer Games - 1 games.