It depends on the type of game experience you're looking for. I would put Planescape: Torment at the helm of Best Game Evar! probably followed by Arcanum despite the fact that they both suck as a game. They're not balanced in terms of character choices and they get exhausted out through multiple plays. What they do do is offer an engaging story and setting as well as intriguing choices.
Tetris and other games of its ilk don't offer you new experiences when you play. They just give you a set of rules and wait until you fail, then repeat with a new game. That would be my chief complaint with them. Multiplayer of almost every game is similar in the execution of these simpler games but the human element adds much more unpredictability.
But in terms of a repetitive yet engaging simple game, I'd probably vouch for the board game Puerto Rico being my favorite. There's so little randomness about it, yet it manages to play out uniquely every time.
Tetris and other games of its ilk don't offer you new experiences when you play. They just give you a set of rules and wait until you fail, then repeat with a new game. That would be my chief complaint with them. Multiplayer of almost every game is similar in the execution of these simpler games but the human element adds much more unpredictability.
But in terms of a repetitive yet engaging simple game, I'd probably vouch for the board game Puerto Rico being my favorite. There's so little randomness about it, yet it manages to play out uniquely every time.