Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 4453440 |
| Live current players | 0 |
| SteamPulse tracked peak | 1 |
| Live count (today's peak floor) | 0 |
| Price | Free to play |
| Free to play | Yes |
| Discount | 0% |
| Original price USD | — |
| Current price USD | Free |
| Release date | Mar 12, 2026 |
| Developer | Freeman, Yolozero |
| Publisher | Freeman |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | Not available |
| SteamSpy owner estimate maximum | Not available |
| Review type | 2 user reviews |
| Positive review percent | 100% |
| Positive reviews | 2 |
| Negative reviews | 0 |
| Total reviews | 2 |
| Steam recommendations | Not available |
| Achievements | Not available |
| Average playtime forever | Not available |
| Windows support | Yes |
| macOS support | No |
| Linux support | No |
| Parent game | Not available |
| Store URL | https://store.steampowered.com/app/4453440/ |
Short description
"Let's find the answer to why we got trapped in the game. Build a deck that fits you, find new cards that suit your style, and fuse your cards together! (You might encounter some bugs while playing, sorry about that! We are just beginners who want to try making our own game.)"
About this game
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!)
Supported languages
English