There is no simulation community that can combine:
1. Completely free game. No pay to win elements at all. The entire ethos is to have a community that enjoys GM games be able to do that without shovelware, unfun insular communities, or technical hurdles to overcome just to get the game running.
2. In-depth game engine with responsive season to season adjustments for competitive fairness and realism
3. An active and enjoyable community of users spanning literal generations of users from teenagers to senior citizens.
This game is easily accessible by all ages, can be fun and fulfilling for anyone regardless of whether their interest is to play for 5-10 minutes a week or their interest is in pouring tons of time into team management or even making their own content or helping with development of the game engines.