This app was mentioned in 1 comment, with an average of 2.00 upvotes
I (and 2 classmates) developed a game like that, Battle of Worlds.
It was in early stages, but it was somehow active.
It has decayed over time since we can't dedicate that much time now... However, if you are interested, we'd love to hear it.
We'll think about resurrecting it!
https://play.google.com/store/apps/details?id=com.battleofworlds.battleofworlds