FreeCell

The worst part about FreeCell is the lack of a proper Undo button. Every move is a risk. A dangerous gambit. A scuffle of cards. Why didn't I die? Go from row to row, which are still movable? The six can swap between those two sevens. There's no way out. Each move could be your last. But, I can't stop playing... And yes, a lose in FreeCell is a death. It's more intense that way if resignation destroys your killing spree and you have to respawn. I wish it had an Undo button instead of a restart.