Finding gems in the world of FOSS can be a difficult task if you don’t know what you’re looking for. However, I can easily say that my top three are Antimine, Shattered Pixel Dungeon, and Minetest.
Antimine is your typical minesweeper game but it’s really well-produced and customizable. I hadn’t really played minesweeper much before Antimine, but I find myself picking up Antimine pretty often.
Shattered Pixel Dungeon is an awesome roguelike that proves rather challenging. The more you play it the better you become, and sometimes you’ll get some really great RNG and it just feels awesome.
Minetest on it’s own isn’t much of a game as much as it is a 3D block-game creation engine. It’s more or less the bones that make up a FOSS Minecraft, and with projects such as Voxelibre, it is a really fantastic Minecraft alternative!
What games do y’all play from F-Droid? Feel free to mention things that come from other repos than the ones that come with F-Droid out of the box!
This isn’t a specific game, but Twine-based games will generally work reasonably well on an Android web browser. These tend to be sort of multiple-choice choose your own adventure games, but span a wide range of genres. I don’t know of a single database cataloguing all of them, but there are a fair number out there on the Web.
For an example (not one I’d specifically recommend, haven’t even played through it, just hit Kagi for an example game that people were recommending):
https://pseudavid.itch.io/the-master-of-the-land