Become a single spore on a journey to blanket the world in mycelium. Click to grow, unlock new mushroom species, and watch your fungal empire expand even while you're away. Whether you have 5 minutes or 5 hours, Fungi Simulator is the perfect idle escape. No stress. Just growth.

Sign in to add this item to your wishlist, follow it, or mark it as ignored

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

Leaving Early Access: Q2 2027

What the developers have to say:

Why Early Access?

“We're doing Early Access to get the community's feedback and to hear what they'd like to add to the game.”

Approximately how long will this game be in Early Access?

“We'll be in Early Access for a few months, at maximum for 8 months.”

How is the full version planned to differ from the Early Access version?

“The full version will contain more variety of upgrades, ui, mushrooms, and an overall polished experience with possibly new mechanics to like the prestige system we want to implement.”

What is the current state of the Early Access version?

“Currently the game is playable with 3 main upgrades for all mushrooms, and you can unlock 3 new mushrooms along the base Toadstool.”

Will the game be priced differently during and after Early Access?

“The game will be priced twice as much as it is now to reflect the new content and effort put into it.”

How are you planning on involving the Community in your development process?

“We want to get suggestions from the community to add new mushrooms, upgrades, and potentially other features alongside feedback to improve the game overall, to do this we'll be communicating via Steam Community Updates, our discord server, and potentially other places that players prefer to use.”
Read more

Buy Fungi Simulator

 
See all discussions

Report bugs and leave feedback for this game on the discussion boards

About This Game

From spore to sporemaster.

Start with a single mushroom. Grow it. Upgrade it. Then push deeper into the fungal kingdom.

With 4 unique mushroom types already waiting (and more on the way), each one demands 100,000 Spore Power from the previous tier — and doubles the challenge.

  • Click to earn spores

  • Upgrade your Click Power, Passive Generation, and Potency

  • Unlock new Fungi with escalating difficulty

  • Prestige and evolve for permanent bonuses (coming soon)

How far can your mycelium reach?

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 (64-bit)
    • Processor: Intel Core 2 Duo or AMD Athlon 64 X2
    • Memory: 4 GB RAM
    • Graphics: Intel HD Graphics 4000 or any DirectX 10 capable GPU
    • DirectX: Version 10
    • Storage: 200 MB available space
    Recommended:
    • Requires a 64-bit processor and operating system
Review Filters