Would you like to play a game?

25 years ago this week it happened. Tetris was let loose on the unsuspecting world.

I have spent too many hours on this game (and others like it)

So, what is your favorite Tetris variant? It's a tossup for me between Blockout or a really nifty freeware of Welltris that was available on the Amiga. I haven't found a decent working version of Welltris in some time, but a really good version of Blockout is available here (PC only)