I just learned that Vainglory, also known as that Moba that was shown at an Apple keynote and then everyone forgot about it, lost its servers and the devs decided to let the community host its own servers, that's really neat https://www.vainglorygame.com/news/vainglory-community-edition
this was back when Mobas were the hot new shit, but focusing only on iPads at the start wasn't a great idea, even though I still think they really managed to nail building a game for large touchscreen devices