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.
No downloads were found matching the criteria specified. We suggest you try the download list with no filter applied, to browse all available. Join now to share your own content, we welcome creators and consumers alike and look forward to your comments.