A game about running a made-up event, starting from absolutely nothing in a tiny bad location with no parking space :p
It starts very tiny, not a lot of people come, etcetera.
Then you scale up, which also means you need to take into account first aid, toilets, safety regulations, etcetera.
In this way, you grow your event (festival/con/whatever) bit by bit! Until you eventually become the biggest one/hit some milestone/hit a number of visitors.
A mix of incremental and (small) management and a bit of strategy/puzzle.