YoYo Games

"YoYo Games is the home of GameMaker: Studio, the fastest and friendliest cross-platform game development technology out there. GameMaker: Studio™ has been developed with usability and efficiency at its core, allowing developers to create games within a single code base. Games are then published to run natively across a multitude of platforms including Android, iOS, OS X, HTML5, Ubuntu, Windows 8, Windows Phone 8 and Windows RT.

YoYo Games is based in Dundee, Scotland."