Shattered Pixel Dungeon the most active fork of pixel dungeon, a rogue like dungeon crawler:
Pros: Simply fun
Polished AF
Has a lot of well balanced items, enemies and unique classes/sub-classes (giving it infinite replayability) actively updated
Also has a lot of great and unique forks (commonly called “Mods” by the community) such as Rat King Adventure
Has good support for both PC and phones (I also think it works well with controllers)
Cons:
You will die
You will die a lot (don’t worry, it’s worth the pain)
Some people in the comments of this claims to use it with real data https://www.phoronix.com/news/Linux-6.2-Btrfs-EXT4
If you use it don’t forget to use RAID1 for metadata