Not my game, but a friend is developing a card-based game on top of the Löve engine: https://berru-dev.itch.io/regicide
Promises:
- Permadeath, permagame. A real roguelike mechanic for a real challenge. If you're smart you can beat the game on your first try. No grinding. No unlocking new stuff making the game easier. Your only chance to win is to get better.
- First class Linux support.
- Community driven. Follow the development on twitch. Leave feedback, influence the game. If you can reach us you will be answered. Comment here (on itch.io) or beat the demo to find the contact address, if you can.

Features:
- Overthrow monarchy, kill kings, queens, princes and princess.
- Innovating card stacking mechanic.
- Deck building : build a different deck on each run. Nobody has time to learn all the cards on their first game.