I would love to see SuperTuxKart except with original free culture characters like @davidrevoy's Pepper&Carrot, Nina Paley's Sita, and Blender Institute's Sintel or Big Buck Bunny. Software mascots are less appealing to a broader audience. Maybe free culture will have more recognition if developers work alongside artists.
Game development! Discussions about game development and related fields, and/or by game developers and related professions.