Somnivium

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About

You are a company employee who works late into the night. You return home to your normal daily life, just like always. However, while casually playing a video game, you are suddenly sucked right into it! Let's find the answer to why you got trapped in this game.

Somnivium is a Roguelike Deckbuilding game where strategy meets limitless creativity. Collect cards, build your deck, and fight your way through a mysterious digital world.

Key Features

  • Strategic Deckbuilding: Choose from over 30 unique cards to build your ultimate deck. Manage your energy (Cost), calculate attack damage, and defend against incoming monster attacks.

  • AI Card Fusion System: The core mechanic of the game! Combine any two cards to create a brand-new "Fusion Card". The game utilizes Local AI to generate unique art illustrations for your fused cards in real-time.

    (Note: Image generation time depends on your hardware. We recommend avoiding the AI feature on the Fusion screen for older PCs to ensure smoother gameplay.)

  • Turn-Based Battles: Engage in tactical battles against various enemies, from Slimes to Skeletons. Every turn counts—draw the right cards and use your skills wisely to survive.

(Note: This game was developed within one month by two novice game developers. We apologize for any bugs, but we hope you enjoy the unique mechanics we've created!)

Platforms
Release date
Developer
Freeman
,
Yolozero
Publisher
Freeman
Age rating
Not rated

System requirements for PC

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 64-bit
  • Processor: Intel Core i5 / AMD Ryzen 3 or equivalent
  • Memory: 8000 MB RAM
  • Graphics: NVIDIA GeForce GTX 1060 (6GB VRAM) / AMD Radeon RX 580
  • DirectX: Version 11
  • Storage: 5000 MB available space
  • Sound Card: DirectX compatible
  • Additional Notes: SSD is highly recommended. The game uses local AI generation for cards, which requires significant GPU VRAM during the creation process.
Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 / Windows 11 64-bit
  • Processor: Intel Core i7 / AMD Ryzen 5 or better
  • Memory: 16000 MB RAM
  • Graphics: NVIDIA GeForce RTX 2060 (8GB VRAM) / AMD Radeon RX 6600 or better
  • DirectX: Version 11
  • Storage: 5000 MB available space
  • Sound Card: DirectX compatible
  • Additional Notes: Installing the game on an SSD will drastically reduce AI image generation load times.
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Last Modified: May 4, 2026

Where to buy

Steam