.io
About Mycelium
Grow your fungus underground, cut off rival colonies and absorb them. A real-time territory strategy game, solo vs bots or online with friends.
How to play
Left-click: grow toward that spot or attack.
Right-click: abilities (Spore, Toxin).
Keys 1-9 and 0: how much biomass a click sends.
Q: Spore. E: Toxin.
Mouse wheel: zoom. Drag: move the map. Space: whole map.
Keep your land connected to your origin, or it withers!
Right-click: abilities (Spore, Toxin).
Keys 1-9 and 0: how much biomass a click sends.
Q: Spore. E: Toxin.
Mouse wheel: zoom. Drag: move the map. Space: whole map.
Keep your land connected to your origin, or it withers!
Strategy- Added
- 8 Nov 2026
- Devices
- Desktop
- Orientation
- Landscape
