While the game pales beside Activision's acclaimed Shanghai series (which shouldn't be surprising, given its budget, shareware status), Tiles of the Dragon is good at what it does. You can play in either solitaire or tournament modes. In solitaire, there is no time limit, and you remove tiles until either they are all gone or you have no more possible matches left to remove. In tournament mode, there will be a pre-established time limit per game, but it's otherwise the same solitaire. You can read concise rules of the game, ask the computer for hints, change background color of the board, choose the tile set, undo your last move, as well as save and load a game in progress. Overall, a nice, straightforward Mah Jongg game that is probably one of the best freeware/shareware versions ever made of this Chinese parlor classic. Thumbs up!