Steam, Tracks, Trouble & Riddles (S.T.T.&R.) is a single player adventure mod, based on source engine (Orange Box) by Valve. It combines two types of game play: an adventure game with complex, 3D-interactive riddles in a fantastic environment and a simulator for track based vehicles.
New props for the world of S.T.T.& R.
I really do love the concept of the talking rings. They remind me of the radios in Bioshock as they give you incite about the past and break up the rather un-human territory. How many colors of them do you plan to make?