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Watch trailer on Steam ↗HyphoSphere
La Maison du Nourson · Published by La Maison du Nourson · Official site ↗
3 user reviews — 33% positive (3 reviews) · 100 achievements
Last updated 28 Sept 2026
A fungal idle game where you grow a mycelial empire from a single filament. Click to harvest nutrients, build living organisms, trigger sporulation to prestige, and let your Twitch viewers join the network.
£0.79
£2.65Lowest price we've ever recorded
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Price history
Indie, Casual · 2026 · More under £5 games
About this game
Grow. Expand. Transcend.
HyphoSphere is a fungal idle game where you build a mycelial empire from a single filament to a cosmic singularity. Click to harvest nutrients, construct living organisms, and watch your network spread across the planet ... and beyond.
From Hypha to Singularity
Start with a single Simple Hypha and unlock 10 distinct organisms, each with its own identity on the living canvas:
Rhizomorphs : robust cords that explore new substrates
Mycorrhizae : symbiosis with tree roots, feeding both you and the forest
Carpophores : the visible mushroom, a spore factory in full bloom
Forest Network : you control the Wood Wide Web
Cordyceps Parasites : infect insects, make them work for you
Fungal Consciousness : the network thinks, optimises, expands
Mycelial Singularity : you have transcended biology. The cosmos is your substrate
A Living Network
The central canvas is alive. Your mycelium pulses, filaments grow outward, particles drift and burst. Random events appear at any time :
Bioluminescent Spore : catch it for ×7 production or 15 minutes of nutrients in an instant
Spore Storm : gather drifting spores across the canvas
Bacterial Invasion : repel the attack before your network is damaged
Cosmic Mycorrhiza : rare, radiant, extraordinary
Sporulation — The Prestige System
When your empire grows large enough, trigger Sporulation: reset everything and earn Primordial Spores. Each spore grants a permanent +5% production bonus. The cycle begins again : faster, richer, deeper.
100 Achievements
From your first harvested nutrient to billions of clicks and cosmic transcendence : 100 achievements track your journey and power up Symbiotic Vitality, a bonus that scales with every milestone you reach.
Twitch Integration
HyphoSphere is designed to be streamed. Connect your Twitch channel and let your viewers become part of the network:
!click : viewers click the mushroom for you
!boost : vote for ×3 NPS for 20 seconds
!invade : vote to trigger a bacterial invasion
!buy : community votes to purchase an organism
No rankings. No competition. Just a living, breathing fungal empire. built together.
Key Features
Idle / incremental gameplay with active events
10 organisms, 45+ upgrades, 100 Steam achievements
Prestige system with permanent bonuses
Twitch chat integration
Dynamic animated canvas
Available in English, French, German, Spanish, Italian, Portuguese
Windows, macOS, Linux
System Requirements
Will my PC run this? →Minimum
- OS *: Windows 7 64-bit
- Processor: Intel Core 2 Duo 2.0 GHz
- Memory: 512 MB RAM
- Storage: 100 MB available space
Recommended
- OS: Windows 11 64-bit
- Processor: Intel Core i3 2.5 GHz
- Memory: 1024 MB RAM
- Storage: 100 MB available space
Supported Languages
Latest news
Patch NotesOfficial
New features !
New features - Morning Dew : Every day, 7 dew drops appear across the network. Collect them for nutrient bonuses. 7 consecutive days complete a Lunar Cycle and trigger a large bonus + ×3 NPS multiplier for 10 min. - Observation Bench : A new cosy interface to contemplate your mycelium network. - Culture Biomes : Visual cosmetics unlock at prestige milestones, rewarding long-term depth. - Mycologist's Journal : A completion journal that tracks your interactions with each event type. - Ancestral Canopy : The emotional prestige tree, the heart of the long-term progression system. Fixes & improvements - General performance optimizations : the game runs more smoothly, especially during long sessions.Read full article on Community Announcements (Geekourson)Patch NotesOfficial
Balance - Prestige Runs
Several runs had their NPS penalty active but their compensating mechanic not yet implemented, making them significantly harder than intended. The following runs now have a threshold reduction to restore balance: - Run 9 — Austerity: NPS ×2 → ×4 / Threshold now ÷4 - Run 64 — Continuous Sporulation: Threshold now ÷3 - Run 82 — Winter Network: Threshold now ×0.15 - Run 93 — Light Spore: Threshold now ÷4 All affected run descriptions have been updated in-game and on the website to reflect the new values.Read full article on Community Announcements (Geekourson)Patch NotesOfficial
Update Notes – HyphoSphere
Following recent feedback from players, we’ve fixed and improved several aspects of the game to make the experience more comfortable and immersive: Text size has been increased to make information much easier to read. The music has been replaced with a less repetitive soundtrack that better fits the fungal/mycelium atmosphere. Sound channels have been split into separate sliders for music and sound effects / clicks, so you can adjust each level to your preference. Fullscreen mode has been added. Contextual pop‑ups and windows have been restyled to match the game’s visual theme and feel more integrated and immersive. Thank you to everyone who shared their thought. These changes would not have been possible without you.Read full article on Community Announcements (Geekourson)Patch NotesOfficial
Sporulation Update
Sporulation Update Following feedback from our beta testers and early community comments, several players let us know that runs were starting to feel too similar over time. We took that seriously, and this update is our answer. 100 runs. None alike. The Sporulation system has been completely rebuilt. Every time you sporulate, a unique modifier changes the rules of the game from the ground up. Across the first 100 sporulations, every run plays out differently. Sometimes your passive production is cut off and only your clicks matter. Sometimes it is the opposite, the keyboard is useless and only time works for you. Sometimes five organisms are locked and you have to make do with the five that remain. Sometimes production is inverted and the Hypha becomes more powerful than the Mycelial Singularity. A few examples of what awaits you: Perfect Balance requires you to own exactly the same count of every organism type, or your production is halved. Silent Productivity multiplies your production by 8 as long as you do not touch anything. The first click resets it all. Harmony of Ten rewards you with ×5 if every organism type you own is a multiple of 10. Manage every purchase to the decimal. Bitter Spore doubles your Primordial Spores at the end of the run, but the threshold increases by 5% for every spore already in your collection. The further you progress, the harder it gets. Quantum Hypha gives every click a 1% chance to produce ×1000 nutrients at once. Normal clicks are only worth half. And after the 100th sporulation, mutations become random: any of the 100 can appear. There is no ceiling. Events that demand your attention. Alongside this, ten types of sporulation events now appear during your runs. Some are opportunities to seize within seconds. Others are threats: bacteria converging on the heart of your network, a toxic spore with a visible countdown, or the Cosmic Mycorrhiza demanding 15 clicks in 10 seconds. Thank you to everyone who took the time to share their f...Read full article on Community Announcements (Geekourson)Patch NotesOfficial
Fixed Sporulation
The sporulation threshold now resets each run and scales with your prestige count. Sporulate as soon as the button is available. Waiting provides no advantageRead full article on Community Announcements (Geekourson)
