USURPRIME

You are a "Slime" — a fragile soul without a body. In this turn-based roguelike, your existence is fleeting. One hit could mean the end. But you possess a unique power that changes everything: Possession.

■ Key Systems
- Possession: Ram into enemy monsters to hijack their bodies! Take control of their stats and survive.
- Possession Attack: A desperate, all-or-nothing strike. Consume 99% of your SP (Slime Power) to deal massive damage proportional to the cost. Use it wisely—it’s your ultimate trump card.
- Skills: Wield the unique skills of the monster you currently inhabit. Be mindful of elemental weaknesses and resistances!
- Mutations (Level Up): As your soul levels up, choose a Mutation. These permanent buffs stay with you even when you switch bodies. Build your own playstyle: All-out attack, tanky defense, or specialized possession?
- Gene Cores: Leaving a host body occasionally drops a "Gene Core." Equip them for powerful permanent buffs during your run.
- Item Synthesis: Stack items on the same tile to synthesize them. Don't let anything go to waste!
- Home Base Upgrades: Use "Soul Shards" at the Lab to permanently upgrade your Max SP, inventory space, and more.
■ Future Updates
The full version of USURPRIME is currently in development! We are planning to add:
- New playable monsters & unique skills
- Challenging dungeon gimmicks
- More Gene Cores & Items
■ Feedback & Support
Your comments, feedback, and bug reports are vital to our development. Please let us know what you think! If you enjoyed the game, please consider supporting us—it truly means the world and helps keep the project alive!
| Status | In development |
| Platforms | HTML5 |
| Rating | Rated 4.0 out of 5 stars (1 total ratings) |
| Author | NozLab |
| Genre | Role Playing, Strategy |
| Tags | 2D, Dungeon Crawler, Fantasy, Pixel Art, Retro, Roguelike, Tactical, Turn-based Strategy |
| Average session | A few minutes |
| Languages | German, English, Spanish; Latin America, French, Italian, Japanese, Korean, Portuguese (Brazil), Chinese |
| Inputs | Keyboard, Mouse, Gamepad (any) |
| Content | No generative AI was used |
Development log
- Bug fixes75 days ago
- Addition of numerous genes78 days ago
- Supports 8 languagesApr 25, 2026





Comments
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The game is nice, I liked the concept and found it entertaining. It was a bit difficult to reach the end of the demo, but I eventually managed it. I think meta-progression and more diverse tilesets would be cool.
Thank you for playing! As for meta-progression, we have various updates planned, such as increasing starting gold and adding more free reroll attempts. The tilesets are also set to change as you venture deeper into the dungeon! Sorry if the wording sounds a bit awkward.