The SCA is essentially a game, although many people tend to forget this. The SCA is all about having fun, dressing up, beating up your friends, eating unhealthy food, making forts and castles... just like you did when you were 6 years old. Sure, you're all adults, and the game is a little more advanced and now involves a whole bunch of legalities, but.. it's still just a game.
You can also play medieval games in the SCA. There are
- The Compleat Gamester by Charles Cotton 1674