
Screenshots

Watch trailer on Steam ↗Mycelium
Cellar Bog · Published by Cellar Bog
Positive — 100% positive (13 reviews) · 20 achievements
Last updated 28 Sept 2026
Enter the post-extinction world of Mycelium. With humans extinct, take control of a new, sentient species of fungi–Spores. Grow your Spore community, grant them powerful abilities, and battle against evolved insects in this Action Roguelite, Pet-Simulator game!
Action, Adventure, Indie, RPG, Free To Play · 2024 · More free games
Explore a post-extinction world as Spores, growing your fungal colony and battling new threats. Mycelium combines roguelike challenges with pet-simulator charm in an indie adventure.
About this game
EXPLORE, CULTIVATE, AND THRIVE IN THE POST-EXTINCTION ERA
Spores–a new, sentient species of fungi–have evolved more intelligent than their rooted ancestors. The rest of the world, however, has evolved too. The Spore colony needs guidance to explore, overcome, and multiply across the exotic world they've bloomed into, lest they become nutrients for this dangerous ecosystem.HOME-GROWN FUNGI
In this Roguelite Pet-Simulator, explore runs as the creatures you've grown! When safe at the home colony, upgrade and grow new subspecies to train and nurture. Unlock new furniture and decor to evolve your home, and boost colony happiness.STAB, SLASH, AND SMASH THROUGH THE WILDS
Choose a Spore from your community to play as, and use their customized stats and abilities to engage in fast, third-person combat against an evolving insect ecosystem. Brave the wilds and bring back as many nutrients as possible to nourish your colony.STICKS AND STONES AND SHARPENED BONES
Experiment with a variety of weapons, each with their own unique attributes. Scavenge for plant, stone, and bone weapons fashioned from the environment. The farther you adventure, the stronger you'll become!WILD, EXOTIC, AND UNFORGIVING TO THE NAIVE
In the wake of humanity and Anthropocene life, insects, arthropods, and all things that scuttle evolved into vacant ecological niches. The Spores, plump with nutritious fungi, challenge the bugs for the top spot in the food chain. Fight your way through 3 lush, procedurally-assembled biomes, each presenting greater threats but yielding even greater rewards!System Requirements
Will my PC run this? →Minimum
- OS: Windows 10/11
- Processor: Intel Core i7-9700K 3.6 GHz
- Memory: 16 GB RAM
- Graphics: Nvidia GeForce GTX 1660 Ti
- Storage: 2 GB available space
Supported Languages
Latest news
AnnouncementsOfficial
Mycelium going free soon!
Hiya!Mycelium's team has decided to make the game free, so we will be switching over soon! There will be no changes to the game, so if you are thinking of purchasing, hold off till we switch over.Read full article on Community Announcements (SomeAxolotl)






