Tales of Gydia, a Liberated Pixel Cup fantasy turn-based RPG that focuses on UGC, was started on SourceForge.net.
Unknown Horizons, a historical city-building and economy RTS, received some new citizen building graphics from a first-time contributor.
Black Dog, an extremely atmospheric HTML5, fully-FOSS helicopter mini-game, got its (unfinished) Android port released.
recent talk (goto 58m20s).
SuperTux, a cute platformer, needs help finishing an animated owl sprite. To the left, you can see the current placeholder graphics.