I am a game designer and programmer, working on roguelikes.
You can download two of my games from itch.io, Hydra Slayer and HyperRogue. Both of these games are based on mathematics, but in very different ways. HyperRogue is about exploring the very infinite world based on hyperbolic geometry, and Hydra Slayer is a game about managing your resources to fight hydras, where the combat system is based on old mathematical puzzles.
I am also a member of the ADOM development team, and the developer of the Necklace of the Eye roguelike frontend (used by Hydra Slayer, ADOM, and Prime, and an unofficial port of Brogue).