Danish developer Playdead has sold one million copies of its dark puzzler Limbo, and is planning a Mac release before the end of the year.
The downloads of the game on Steam, PSN and XBLA have allowed Playdead to buy out the investors that supported it early on.
"With the success that Limbo has achieved, we felt this was the ideal time to fully regain our independence," said CEO Dino Patti.
"We are grateful to everyone who supported us over the past few years, and look forward to forging new partnerships that will both let us reach new heights as a studio and give our director, Arnt Jensen, room to grow creatively."
Arnt Jensen founded Playdead with Patti in 2007, and also spent some time as a concept artist with IO Interactive.
According to Playdead, Limbo has reached 153 different countries, in nine different languages. The company is currently working on its next project, which will use the Unity engine.