Support & FAQ

Each spin, random symbols land on the 5x5 soil grid to generate biomass and activate synergy buffs with neighboring fungi. By tapping on a symbol and spending a Root Charge, you anchor that symbol permanently to the grid across spins. Rooted symbols gain evolution progress with each spin, eventually transforming into higher-tier ancient strains with massive multipliers.

In Mycelium: Old Growth, there is no "game over" or defeat screen. If your biomass does not satisfy the winter quota, your network enters Dormancy. All accumulated spore currency is retained and awarded to your profile, allowing you to branch outward into the 66-node Overgrowth meta tree to unlock new starting strains and passive mechanics.

Threats are hazardous soil obstacles that spawn on the board. Each threat has a distinct mitigation rule:

• Cleanse: Certain fungi (like Oyster Mushroom or Chanterelle) actively absorb and decompose threats.
• Proximity Taming: Rooting beneficial species adjacent to threats can pacify them, turning hazardous blight into fertile soil nutrients.
• Deep Soil Winter Shop: Spend surplus seasonal biomass to purchase cleansing agents and soil purifiers.

Yes! 100% offline. Mycelium: Old Growth does not require an active internet connection to play. All simulation calculations, saves, and progression trees run locally on your device.

Mycelium: Old Growth is optimized for:

• iOS / iPadOS: Requires iOS 15.0 or later (iPhone & iPad).
• Apple Silicon Mac: Compatible with macOS 12+ on Apple Silicon (M1/M2/M3/M4).
• Android: Requires Android 10 (API 29) or higher (Coming soon to Google Play).
• PC / Steam: Windows 10/11 & Linux x86_64 / SteamOS.

You can take a screenshot on your iOS device while playing and select "Share Beta Feedback" directly within Apple TestFlight. Alternatively, you can post in the #bug-reports channel on our Discord or email us at [email protected]. Please include your device model and the seed number shown in the pause menu.