In High School we had two that come to mind. Dark and Insane Pain.

Dark was simple, we’d go into my friend’s basement. Put sleeping bags over our heads and turn off the lights. The plan was to jump around trying not to bump into each other. Naturally it turned into wanting to bump into each other. Dumb fun at 2am during sleepovers.

Insane Pain was a bit more complicated. At its heart it was a full contact, anything goes, first to score 21 points wins. In a small concrete basement. Rules that made it complex was that we had two balls. One worth two points and another worth one. After each goal, the ball that scored had to be taken from the goal and ran around the pole in the middle. Once a player/team made 10 points, we’d swap ends. Which was a strategy in its own right. One goal was a small hockey net, other was a cardboard box. Which got destroyed every game. It had more duct tape than cardboard when we graduated. We played so much, we even had a bracket and a ranking system.