Hi! We're Filipe and Paul, a designer and a programmer maintaining a free/libre and open source game for iOS.
It was published on August 17, 2016 on the App Store: https://itunes.apple.com/ch/app/edgar-explorer-jeu...
Our assets are CC-BY and our code LGPL, here's our Github.io page. Feel free to fork and reuse or contribute!
If you'd like to take part to the testing process for the next updates, write to us on our Facebook page.
We're currently getting used to Godot, a great MIT licensed game engine. If Unity is Internet Explorer, then Godot is Firefox: a cool, well designed free&open source software with a very supportive community :-)