PHYSARUM: Slime Mold Simulator

PHYSARUM: Slime Mold Simulator

Ka Hin Yuen · August 30, 2021 · Simulation, Sandbox, Casual, Science, Education

Buy PHYSARUM: Slime Mold Simulator from Steam at $5.99 — the cheapest of 1 store we compare.

PC
Positive90% · 21
Best price
$5.99
lowest tracked $2.99
Steam Buy at Steam

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Where to buy PHYSARUM: Slime Mold Simulator — official stores

Steam
Steam
Standard Edition · Steam
$5.99
Buy

PHYSARUM: Slime Mold Simulator price by region

PHYSARUM: Slime Mold Simulator costs $3.99 in Georgia (USD), £4.79 in the United Kingdom, €4.99 in Europe (EUR), $5.99 in the United States, CA$6.69 in Canada, NZ$7.59 in New Zealand, A$8.50 in Australia, R$12.39 in Brazil and zł21.99 in Poland right now.

Cheapest PHYSARUM: Slime Mold Simulator offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
Georgia (USD) $3.99 $3.99 — 1
United Kingdom £4.79 £4.79 — 1
Europe (EUR) €4.99 €4.99 — 1
United Statesyour region $5.99 $5.99 — 1
Canada CA$6.69 CA$6.69 — 1
New Zealand NZ$7.59 NZ$7.59 — 1
Australia A$8.50 A$8.50 — 1
Brazil R$12.39 R$12.39 — 1
Poland zł21.99 zł21.99 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About PHYSARUM: Slime Mold Simulator

✦ AI summary

PHYSARUM: Slime Mold Simulator lets you watch and manipulate virtual slime mold colonies in real time, tweaking their properties to generate endless organic patterns and mesmerizing behaviors. Create custom environments with drawings, images, or live webcam feeds, then observe how the simulated organisms adapt and interact in this meditative sandbox experience.

A mesmerizing and relaxing simulation sandbox.

Watch the slime mold Physarum polycephalum grow in real time as you tweak and mutate its properties. Learn about the real life organism and discover different ways to manipulate its behavior. Encounter countless unique and organic looking patterns with a seemingly simple multi-agent chemoattractant system.

Features

  • Watch as many slimes as your computer can handle interact with each other
  • Discover new and unique patterns and share them with others (Join our Discord!)
  • Create environments with drawings, images, videos, or a live feed from your webcam and watch the slimes take its form
  • Watch different slimes transform into each other with the morph system

PHYSARUM: Slime Mold Simulator — game info

Platforms
Windows
Player modes
Single-player
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

PHYSARUM: Slime Mold Simulator is praised by players for its unique concept, creative organic pattern generation, and practical utility in fields like architecture, with responsive controls and extensive customization options that reveal deep complexity. The main criticism centers on occasional stability issues when rapidly changing settings in video mode on higher-end systems, though players note this is manageable at the game's low price point.

Recommended Apr 19, 2026
very cool simulator, im using it for my architecture school for exploring organic shapes and patterns, and its been very useful! thanks for making it!!
1 found this helpful
Recommended Mar 20, 2026
What it does it does well. Responsive, multiple ways to play with it. Fun and worth the money if you like looking at things like this.
1 found this helpful
Recommended Jul 26, 2026
Very nice and cool feature set with a unique concept... however, stability, stability, stability. stability is meh on a machine with 16 cores and 24gb ram when used in video mode, which is why I got it. for 6 bucks however, this can be overlooked as every other part is stable, and video is only like this if you change and load a crap ton of settings waaaay to fast. for the price it is good and recommended but would absolutely love to see it updated once again just to address final stability. Thank you!
Recommended Oct 23, 2025
Great simulator for a reasonable price. While it may seem simple, there is a very large amount of differing behaviors and patterns that can emerge when you tweak settings. For example, setting sensor angle above 90 can result in circular patterns forming, and tweaking sensor offset and speed can tweak how exactly they look. Also, if you buy this, try the morph option using 2 slimes that form entirely different structures; like slime A making circles while slime B makes the standard web pattern. Overall, very good for fidgeting or making neat visuals; Autism approved.
Recommended Apr 30, 2025
A lot of this is really pretty, but I was hoping to try the "Tokyo Subway" experiment simulation over a map of my hometown. Not really sure if that is possible with this, though. It'll make cool shots for video, for sure, but I'm not sure it'll do what I wanted.
Recommended Apr 16, 2025
I love this. It's so creative and interesting. I run it on my 2nd display essentially as a wallpaper engine, because the patterns are so enthralling. They can be incredibly chaotic, or slow and meditative. I highly recommend messing around with this and randomise a slime for a while, the tweak it to your liking. This isn't a game - it's a simulation. It takes a moment to understand, but it's not very complex unless you want it to be. To whoever made this, I love how well it runs and the creative vision behind it. It's clearly very technical, but the product is so creative. I love this type of stuff.

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