The firm makes the "GameMaker:Studio" software, which is credited with being the world's most widely used game development software.

BBC: DundeeOne

GameMaker Studio, for example, features integration with Steam Workshop that allows GameMaker users to share their work via Steam.

ENGADGET: First non-game titles now available on Steam, game dev tools lead the charge

He later worked on 3-D graphics at gamemaker Atari, compact computing systems at Apple Computer and easy-to-use interfaces at Disney.

FORBES: Croquet, Everyone?

The hours of a professional gamemaker can be grueling, says Jason Della Rocca, executive director of the International Game Developers Association.

FORBES: Magazine Article

Most adults, in the U.S. at least, don't want to be sword-wielding elves long enough to let a gamemaker turn a profit.

FORBES: A World for the Rest of Us

Activision, another Xbox gamemaker, has a billion-dollar market capitalization despite its cheaper multiple, but insiders were selling off its stock this fall--not a reassuring sign.

FORBES: Still time to score?

The creators of Second Life have experienced a creative renaissance in 2012, first with Patterns (a more sophisticated version of Minecraft), Creatorverse (a 2-D gamemaker), and most recently dio (a photo-sharing site on steroids).

FORBES: Linden Lab's New App 'Versu' Is a Play on Words