3 and a half hours. We spent 3 and a half hours playing a single game of munchkin. On the first couple turns we used like ten modifiers in one combat phase. And I finally won after my friend pulled the card Divine Intervention. This makes all clerics on the board gain a single level. And the card states that it can be the 10th level and if it is you get complete bragging rights. Winning at life right now.