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One More Sin
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.

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Features
Single-player
Steam Achievements
Family Sharing
Steam is learning about this game 
Languages:
Interface Full Audio Subtitles
English ✔
French ✔
Italian ✔
German ✔
Spanish - Spain ✔
Czech ✔
Danish ✔
Dutch ✔
Finnish ✔
Greek ✔
Hungarian ✔
Indonesian ✔
Japanese ✔
Korean ✔
Malay ✔
Norwegian ✔
Polish ✔
Portuguese - Brazil ✔
Portuguese - Portugal ✔
Romanian ✔
Russian ✔
Simplified Chinese ✔
Spanish - Latin America ✔
Swedish ✔
Thai ✔
Traditional Chinese ✔
Turkish ✔
Ukrainian ✔
Vietnamese ✔
See all 29 supported languages
This game is not yet available on Steam

Planned Release Date: 2027

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About This Game

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.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

This game makes use of generative AI as part of its creation process of art and localization.

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • OS: Windows 10
    • Processor: 2.0 GHz
    • Memory: 8 GB RAM
    • Storage: 2 GB available space
    Recommended:
    • OS: Windows 10
    • Processor: 3.0 GHz
    • Memory: 16 GB RAM
    • Storage: 2 GB available space
    Minimum:
    • OS: macOS 11
    • Processor: 2.0 GHz
    • Memory: 8 GB RAM
    Recommended:
    • OS: macOS 11
    • Processor: 3.0 GHz
    • Memory: 16 GB RAM
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
    Minimum:
    • OS: SteamOS 3.0 / Ubuntu
    • Processor: 2.0 GHz
    • Memory: 8 GB RAM
    Recommended:
    • OS: SteamOS 3.0 / Ubuntu
    • Processor: 3.0 GHz
    • Memory: 16 GB RAM
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