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One More Sin

Coming soon

Robo GoatDiscovered Sep 21, 2026

About the game

Become a demon summoner in this roguelike deckbuilder. Discover forgotten sorceries, cursed enchantments and powerful creatures as you craft the perfect deck to crush your enemies and serve your dark queen.

Original Steam description

Run-based deckbuilding

Build a new deck each run as you progress through the story, unlocking harder enemies and more cards to build around.

Creatures, sorceries, and enchantments

Creatures fight for one turn, sorceries resolve immediately, and enchantments last for the whole combat.

150+ cards

Rare cards define key archetypes, while the rest of the card pool gives you flexible ways to support and adapt each build.

More to come

Follow One More Sin for upcoming playtest announcements.

Demo and release information

No demo is verified in the current check data. This does not mean the game has never had a demo; check its Steam page for current availability.

Steam demo, playtest and Early Access: what is the difference?

Information & artwork: Steam · Last checked UTC