Hey there, we launched this game at the end of last year and used monogame for ios/android. Its a weird msh up of a management/city builder game, and an arcade game based on a really old game called jezzball.
I think this is our 8th game built using Monogame. - still struggling with some aspects of Xamarin, but hopefully we will figure it out in the end!
We are still very slowly getting the switch and PC versions done....and yes - very slowly!
STEAM - https://store.steampowered.com/app/1148410/Prison_Planet/
iOS - https://apps.apple.com/us/app/prison-planet/id1477142341
Android - https://play.google.com/store/apps/details?id=com.springloaded.prisonplanet&hl=en_SG