Mycelium
Summons a fighting spore every few seconds in battle. Spores accumulate every battle.
- Type
- Building
- Owner
- King of Nature
- Unlock the king
- Train 999 units
How to get it
- In the King of Nature's 9-card deck: a run as this king can start with it, and losing a battle offers cards from your own deck.
- Loot after beating the King of Nature in battle when that king is one of your enemies.
- Merchant: Jack of Structures (buildings, towers and bases).
- Joker mode: pick it for a custom deck.
Decrees, perks and cards that name it
| Entry | Effect |
|---|---|
| Gigafunghi King of Nature decree | Fuses all your current Mycelium's spores into a Giga Mushroom with double stats. |
| Pollinator King of Nature perk | Start with a Mycelium in a random outer plot. |
Rest of the King of Nature deck
Patch history
- Patch #22
Mycelium no longer gets a massive boost whenever you load a run.
- Patch #31
Mycelium stats were slightly buffed.
- 1.0
Mycelium now displays troop count (specific feature of a Tower card).
Lines from the official Steam patch notes since Patch #18 that name this card.
Achievements
- The Last of Us: Have Mycelium's Sporeling kill a boss.
Data: 9 Kings 1.0 card table on the official wiki, imported 2026-11-13.