also worked on Frogatto & Friends, which features a free engine but mostly proprietary game data. Hubs and development teams The general lack of unity and organization has created and continues to generate some controversy among the free software community, with problems of "reinventing the wheel" by making similar clones, games and multimedia resources being cited as a notable problem to free game development. This is especially taking up more notice as other problems are corrected, such as a lack of tools, libraries, artists and coders. A more central knowledge bank, texture library, and discussion area had been lacking. Traditionally free software video games were developed as individual projects, some small scale and others larger scale. Programmers and other developers did often work on other projects, but the whole system was very unlinked. More recently free software development teams have started appearing, groups that function like software companies and create multiple pieces of work. Examples include the developer Parallel Realities, which have released the games Project: Starfighter, The Legend of Edgar, Blob Wars: Metal Blob Solid, as well as its sequel, Blob Wars: Blob and Conquer. The Linux Game Tome "Game of the Month" team was an open group of game developers that revamp old free software games. Some examples include the transformation of TuxKart into the more modern SuperTuxKart, work on Pingus and SuperTux, and Lincity-NG, an updated version of Lincity with superior graphics. A more recent project with similar goals exists called LibreGames, which has worked on Jump 'n Bump, OpenAlchemist and FreeTumble and JAG. PlayPower is a non-profit organization founded in 2008 designed to create free educational computer software for low income families in India and other developing countries. The Tux4Kids initiative also maintains various educational games featuring the child-freindly Tux character such as Tux Paint, Tux, of Math Command, Tux Typing and related efforts. The GCompris suite is also available from KDE, and the activity centre Childsplay is also available. In recent years, content repositories such as OpenGameArt.org, Wikimedia Commons, Openclipart, and The Freesound Project have enabled developers to easily find appropriately-licensed content rather than relying on programmer art. Such content is often under Creative Commons licenses or those in the GNU GPL family, easily facilitating use by most free software projects. OpenGameArt.org is also affiliated with related websites such as Libregamewiki, a database of purely libre games, the Free Gamer blog and the FreeGameDev forums.