About the Game
MYCELARIUM IS A MEDITATIVE INCREMENTAL GAME
Start with a single mushroom. Spread your mycelium through the soil, discover hidden resources, and build a thriving underground network. Automate resource production, unlock strange new mushrooms, and watch your tiny organism grow into a vast, self-sustaining fungal empire.
The forest is alive, but not hostile. Leaves fall and decay into food. Hedgehogs wander across the surface. Trees can become future sources of nutrients. There is no rush and no hard fail state, only the quiet pressure to expand, adapt, and connect.
Explore an endless procedural underground filled with food pockets, water reservoirs, hard soil, and impassable stone. Build your fungal empire one thread at a time.
FEATURES
Grow a living underground mycelium network from a single mushroom
Aim new growth with a slingshot-style control system
Collect underground food pockets and connect to water reservoirs
Improve range, width, water efficiency, node cost, budding chance, and soil penetration
Unlock specialized mushroom mutations
Launch wind-carried spores to create distant new growth points
Build different mushrooms on the surface
Parasitize trees
Explore an endless procedural underground world
A calm pixel-art forest
Play at your own pace with no hard fail state
Screenshots
11 imagesVersion Information
Steam Patch Notes
Official update history
We just released a quick fix with a little extra:
- Optimization fix
- Camera teleport controls added in UI
- Visual fixes
Please let us now if this fix worked for you.
Cheers!
Current Release
Build 26452201
Uploaded Nov 05, 2026
System Requirements
How to Install
Mycelarium.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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View AllDownload Mycelarium for PC with a direct link or via torrent. Get the full version of Mycelarium for free. Mycelarium is a Simulation released by PLAN KAPKAN.