Fungi Simulator tasks you with cultivating a mycelial network from a single spore, clicking to expand your fungal presence while offline progression lets the colony grow unattended. As you spread across the world, you'll unlock new mushroom species and watch your empire develop at your own pace. It's an understated idle game for players seeking gentle, low-pressure gameplay with tangible progression.
About this game
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.
Players, last 29 days
Peak 1 · Low 0
Daily peak concurrent players, sampled once a night from Steam.
What players are saying
▼ Not recommended1 hrs
You should probably pass this one by. It's glitchy as hell. If you leave the game and continue it later, you have negative spores. Also, the achievements are ridiculous! There's one for playing the game for 10,000 hours. That's more than 416 days. That's well over a year! Who will be in-game on a mediocre clicker for over a year!?
Update: Big Numbers, Clean UI, and Better Bug Tracking!Hey everyone!I’ve just pushed a brand new update to address a few major scaling issues and add some highly requested quality-of-life features. Here is what is new in the latest patch:🍄 Infinitely Scalable Numbers (The Overflow Fix)The Problem: As you progressed deep into the game, the math behind your mushroom counts would hit structural limits, causing integer overflows and breaking the calculation logic.The Fix: I have completely replaced the underlying number system. The backend math is now entirely consistent, fully stabilized, and immune to overflowing, no matter how many spores you get!📊 Shortened Number FormattingClean UI: To keep the screen clean during late-game progression, the UI now automatically compresses massive digits.Example: Instead of seeing long, cluttered text like 1,030 or 1,000,000, the game will now display readable shorthand formats like 1.03K or 1.00M.🐛 In-Game Bug Reporting (F8)Immediate Feedback: If you encounter a weird glitch or visual error, you can now press F8 to open a bug report form.How it helps: This triggers a dedicated bug report system that captures the exact context of the issue, making it significantly faster for me to track down and patch.
Posts come from Steam's official announcements feed.
