You are the GM of a team. You play against 31 other players in a professional league. You sign free agents, draft players, deal with injuries, choose plays for your team to run, when you want. Every real day, is a game "week" so you play a game a day, unless it's the offseason.

You have a salary cap you have to deal with. Trade with other human players. Try to win the Championship.

A season lasts a real time month from start to finish. The players are all fake, they grow up. They make pro bowls, and try to make the hall of fame.

We have leagues that have run over 70 seasons at this point.