The project has gone commercial! - www.moddb.com/games/the-ball The Ball is an indie singleplay action/puzzle game, running on Unreal Engine 3, for PC. The expected release date is spring 2010. The project started out as a mod and has since gone stand alone. Best Singleplay Mod of 2008 according to ModDB MOTY 2008. Five-time first place winner in the UT3 MakeSomethingUnreal Contest. Used by Epic Games' to promote their UDK release.
Shows the first five minutes of gameplay of The Ball Oztoc, including the large cavern at the beginning, and the first meeting with the ruler of the world. Note that the video only shows some relatively easy puzzles, this to do no spoil any of the more advanced ones later on.