You can play it indoor, on a basketball court, or outdoor, on a larger field. Outdoor is real Ultimate, so we only play indoors on winter evenings when it is too dark to play outside.

Each team has seven people on the field at any time (four for indoor), and the idea is to score goals by having a player on your team catch the disc while he/she is inside the other teams endzone (indoor this is the keyhole on the basketball court). You can not run with the disc, and you have 10 seconds (the person marking the person with the disc counts to 10) to make a pass once you have caught the disc. If the disc hits the ground, is intercepted, or it goes out, then the other team gets to pick it up and go on offense.

Outdoor the field is 64 metres long and 36 metres wide, with a 18 metre long endzone at either end.

You get one point for each score, and after every point teams change ends.

You can play to any total, or for any length of time, but usually there is a 100 minute time cap and it is first team to 17.

One of the funniest things about Ultimate is that there is no referee. Every player knows the rules, and is expected to play within them. This idea is called the 'spirit of the game', or just 'spirit' for short. If there is any contact between players (and one calls a foul), or any other kind of dispute, the players sort it out amongst themselves (and not by ritual combat).

So there you go. That's the basic idea of Ultimate.