The hardest game you've ever played

[Dogbert]

Gunna sound corny. And perhaps slightly off topic. But you need to understand i am older than most here.

My answer would be LIFE.
LIFE is the hardest game. Truly it is.

I don't think this is what you mean't, I automatically thought of the board game, Life, I instantly agreed. That game is hard as hell, honestly don't think I've ever actually won a game.

On topic; The hardest game through out the years.. I'd have to say the original Starcraft for the 64 was hard for me to beat and I can't think of anything that gave me more trouble, tbh, I was really young though at the time, so don't make flame me. =p