Fatalist Development AB, doing business as Avalanche Studios, is a Swedish video game developer based in Stockholm, Sweden. It was founded in March 2003 by Christofer Sundberg and Linus Blomberg. Avalanche Studios focuses on developing open world projects and bases them on the Avalanche Engine. Formed after the collapse of Rock Solid Games, the studio has expanded from six members to 250 staff members. As well as their main studio in Stockholm, they have two further studios: a studio in New York City (since november 2011), that worked on Just Cause 3; and a subsidiary studio in Stockholm named Expansive Worlds, that worked on theHunter. Since the companys establishment, it has worked on multiple projects, including the Just Cause series of open world action-adventure games published by Eidos Interactive and Square Enix, and Mad Max. They have also developed some relatively less popular games including the free-to-play theHunter, top-down shooter Renegade Ops and Rumble City, their first mobile game. The company aims to begin self-publishing new original intellectual properties in the future.