For decades, the open source model has been successfully applied to numerous software applications; however, the same success has not been found applying it to game development. Open source games tend to lack the polish of commercial titles, and there are also difficulties in applying the bazaar model (Raymond, 1999a) to game development. On the other hand, open source games are not restricted by third parties such as publishers. On top of this, Raymond’s guidelines for good open source software development contain helpful information for game development. Despite its past, the open source model still has a future, especially in the mobile gaming market.