Steam Playtests
Slimekin

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Slimekin playtest

by Minch Solutions

Feed your slimes enemy remains, armour, magic and strange materials to shape what they become. Explore changing dungeons, build powerful slime teams, discover branching evolutions, and fight your way toward the Demon Lord in this creature-evolution roguelite.

Anyone with a Steam account can join, and it's free.

Access
Instant
On playtest since
Oct 22, 2026
Planned release
Coming soon
Developer
Minch Solutions
Platforms
Windows
Players
Single-player
Languages
English, Japanese, Korean, Traditional Chinese

How to join the Slimekin playtest

  1. Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
  2. Use the Slimekin playtest signup there. You're in straight away, with nothing to pay.
  3. The playtest shows up in your Steam library, ready to install and play.

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How AI is used

Generative AI Disclosure Slimekin is an independently developed game created by a solo developer with no external funding. Generative AI has been used to assist with certain parts of production, including Steam store promotional artwork, some music, and illustrated story cutscenes used to tell the game's narrative. The slimes, characters, and environments use a combination of hand-drawn artwork, commercially purchased assets, and artwork commissioned from human artists. Character animations are human-created, and the gameplay systems, combat, evolution, fusion, and enemy behaviour are designed as part of the game's development. No generative AI is used during gameplay. All AI-assisted content is pre-generated; the game does not generate images, dialogue, music, or other content dynamically while players are playing. As a self-funded solo developer, AI-assisted tools help make parts of the game's presentation possible that would otherwise be difficult to produce independently. The focus remains on delivering a fun, original game with engaging mechanics and a distinct visual identity.

The developer's own words, from Steam.

About Slimekin

What you feed your slimes changes what they become.

Slimekin is a creature-evolution roguelite where you lead a small team of slimes through dangerous dungeons, defeat monsters, collect what they leave behind, and feed those materials to your companions.

Enemy remains, armour, herbs, magical cores and stranger discoveries build different affinities within your slimes. Feed them the right combination and you can unlock entirely new species — turning the same Basic Slime into a heavily armoured Guardian, an aggressive Fang Slime, a healing Bloom Slime, a fiery attacker, or something far stranger.

But evolution is only the beginning.

Every run gives you different enemies, rewards, rooms and opportunities, forcing you to adapt your team rather than simply following the same build every time.

Feed. Mutate. Evolve.

Build your team through the things you discover during each expedition:

  • Feed your slimes monster remains, magical materials and rare discoveries.
  • Unlock branching evolutions and discover new slime species.
  • Build powerful team synergies by combining different slime roles and traits.
  • Explore changing dungeons filled with combat rooms, elites, treasure, shops, mutation labs and hidden rewards.
  • Command your slimes in real time by positioning them, focusing dangerous enemies and supporting them with your Tamer's abilities.
  • Take risks for better rewards by choosing dangerous routes and elite encounters.
  • Discover new evolutions and permanently expand your Codex between runs.

Build a Different Team Every Run

You won't always find exactly what you planned for.

A run filled with armour and knight remains might push you toward defensive Guardian Slimes. Another may give you spirit cores, cursed remains and magical materials that completely change the direction of your team.

Part of surviving is learning when to follow your plan — and when to mutate into something completely different.

Journey Toward the Demon Lord

Push deeper into increasingly dangerous regions, defeat powerful guardians and unlock new areas on your journey toward the Demon Lord.

Your individual run may end, but your discoveries remain.

Unlock new evolutions, abilities and possibilities, then return stronger in knowledge — not just numbers.

Raise your slimes. Feed them your enemies. Discover what they become.

From the game's Steam page.