Skip to Content
Unofficial community guide — not affiliated with Yield Fields. Not financial advice. Values marked “may change” are not final on mainnet.
Selling & the mathMarket and Farmer

Market and Farmer

Harvested crops go to your Bag and are sold at the Trading Post. There are two buyers: the Market pays ETH on the spot, the Farmer pays $YIELD. Both take a fee. Verified

Market Farmer
Also calledThe Broker—
Pays inETH$YIELD
PaysCrop value minus the Market feeCrop value minus the Farmer fee, swapped into $YIELD
Paid fromThe CornHub’s ETH floatThe official $YIELD pool
Card copy“Sell to the Market” — “Paid on the spot. No waiting, no guessing.”“Sell to the Farmer” — “Moves with the $YIELD price. Swapping to ETH costs (sell fee) or more.”
Fee10 %10 %
OpensWith farming“once the launch tax settles”

Verified The fees are settings; the mainnet fees are not deployed yet, and the docs say the Farmer will charge lower Co-op Dues. May change

How a sale works

Pick the crops

Per crop, or “all of a rarity”, or everything. Crops with a price of 0 are hidden. The crop tile reads “Worth X. The Market pays Y of that in ETH, the Farmer Z in $YIELD.” Verified

The game signs a sale ticket

The game prepares a signed sale (a sale ticket) and puts the crops on hold. Verified

You send it on chain

Your wallet sends the ticket to the CornHub; the game simulates it first. Each ticket can be used once and expires. Verified

The CornHub pays you and records the value, the amount paid and the fee. Logs: “Sold N crops for X in ETH” (Market) or “Sold N crops · +Y $YIELD” (Farmer). Verified

The Market: ETH on the spot

payout (ETH) = crop value − crop value × Market fee

The ETH comes from the CornHub’s float: the ETH that pack sales bring into the CornHub.

Verified

If the float is too low, the sale stops and nothing leaves your Bag: “Can’t sell right now — The Market is short on ETH. Nothing left your Bag. Try fewer crops, or come back later.” Verified

Example. You sell one Diamond Heartbeet (value 1.25 ETH) at a 10 % fee: you receive 1.125 ETH and 0.125 ETH goes to the Buyback vault.

The Farmer: $YIELD

ETH into the swap = crop value − Farmer fee $YIELD out = what that ETH buys in the pool (at least the ticket's minimum)

Selling to the Farmer converts the crop’s value, after the fee, into $YIELD at the pool price; swapping $YIELD back to ETH pays the sell tax. The in-game panel says the same: the Farmer pays in $YIELD bought tax-free on Uniswap, and swapping it to ETH costs the sell fee or more, “so it can net less than the Market”. Verified

  • Tax-free buy. The Farmer buys $YIELD for you on the official pool and skips the buy tax, so every Farmer sale is a $YIELD buy. Official source
  • Slippage. A bigger sale moves the price. The quote already includes it: ”≈ X, after Y % slippage”. When the $YIELD you would get is worth over 3 % less than the ETH going into the swap, the game warns: “This sale moves the $YIELD price … Sell fewer at a time to get more.” Verified
  • Protection. If the price moves past the ticket’s minimum, the sale stops instead of paying less: “The $YIELD price moved. Your crops are safe; sell again for a new quote.” Verified
  • Not open at launch. “The Farmer opens once the launch tax settles.” Until then: “Opens soon — The Market still buys your crops.” Verified

The Farmer pays in $YIELD. To compare it with the Market in ETH, subtract the $YIELD sell tax you would pay to swap back, or count it in $YIELD if you keep it.

Where the fee goes

Both fees go to the Buyback vault, which buys $YIELD and sends all of it to the Truffle Pool. See $YIELD, the Truffle Pool and buybacks. Verified The docs call these fees “Co-op Dues”. Official source Sale fees go to the Buyback vault, which is most likely the docs’ Farmers Co-op. Inferred

Seeds and crops stay in the game

In this build seeds, crops and packs stay in the game; only Fertilizer can be exported. They live only inside the game, off chain. Verified

Refusals

MessageWhen
“Selling is paused. Try later”The CornHub or the game paused sales
“Some of those crops can’t be sold right now”A crop’s price is 0
“Those crops were already sold”The same crops in a second sale
“That sale has run out of time” / “That sale is already over”The hold expired or closed
“Farmer sales aren’t open yet”The Farmer gate is closed

Verified The practical limits on a sale are the Market’s float and the pool’s depth. Inferred

Still REDACTED

  • The Market and Farmer fees on mainnet.
  • How the game picks the minimum $YIELD out (its slippage tolerance).
  • Whether seeds or crops will ever be exportable.