The Merchant (previously known as strange voice) is found on the first level of Polypore Dungeon near the entrance.
He owns and operates Polypore Dungeon Supplies, where he sells players items that can be of use in the dungeon, such as jugs. He also sells mycelium web armour, which is magic armour that can be modified with drops from the dungeon to create fungal armour, grifolic armour, and ganodermic armour.
The merchant can also be used to store certain Polypore-specific items by right-clicking and selecting Exchange. Players can store:
- One jug of neem oil. If the player has multiple jugs of neem oil, the one with the most doses would be stored. If two or more jugs have the same amount of doses, the one coming first in the inventory would be stored.
- 8191 polypore spores
- 8191 fungal flakes
- 8191 grifolic flakes
- 8191 ganodermic flakes
The merchant can hold up to 4,218,365 coins worth of items.
When asked about himself, the Merchant tells a short story of how he used to "live in a little house in a warm land", with his "Darling". He then goes on to tell how his Darling died of some illness, and then he wandered off and presumably may have gone somewhat insane, possibly due to spending so much time alone. Eventually he found "Ladyship", or the Ramokee Skinweaver, for whom he now works and reveres, speaking of her like a queen.
- When standing next to the Merchant, a unique music track plays.
- The way the Merchant speaks when talking to him strongly suggests that he is based of the creature Gollum from the Lord of the Rings franchise.