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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.
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Fungi Simulator
SteamAbout Fungi Simulator
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.
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Click to earn spores
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Upgrade your Click Power, Passive Generation, and Potency
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Unlock new Fungi with escalating difficulty
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Prestige and evolve for permanent bonuses (coming soon)
How far can your mycelium reach?
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