Listing genetics on the marketplace

Listing puts your genetic material in front of buyers on the Creatures marketplace, with payment and fulfillment handled through Creatures. You list from an existing inventory item, so sales, storage, and lineage stay connected.

Before you can list

To publish a listing publicly, your seller account has to finish a few verification steps first, so buyers can trust the listing and Creatures can pay you out. This is the same seller setup as selling an animal (a verified phone number, identity verification, and a connected payout account); see What you need to start selling. You can build and save a listing as a draft before that is done; publishing is what the verification gate blocks. Finishing setup once clears the way for every future listing.

Create a listing

From your genetics dashboard choose List for sale, or go to Marketplace, Genetics, List genetics.

• Source item: the inventory item you are selling from. Add it to your inventory first if it is not there. This stays fixed for the life of the listing, because the listing is a window onto that specific material.
• Quantity offered: how many units of the item this listing makes available to buyers.
• Sale format: Fixed price (buyers check out immediately for a quantity they choose) or Auction (the winner buys the full available quantity as one lot). This choice decides which pricing fields you see next.

Fixed-price listings

• Price per unit: what one unit costs.
• Bulk tiers (optional): a lower per-unit price at higher quantities, entered one per line as a minimum quantity and a price (for example, ten or more units at a reduced rate). A buyer automatically gets the best tier their quantity qualifies for, which rewards larger orders without you quoting each one.
• Minimum order and Maximum order (optional): the smallest and largest quantity a single buyer can take. A minimum keeps you from shipping one straw at a time; a maximum keeps one buyer from clearing you out.

Auction listings

• Start time and End time: when bidding opens and closes. Bidding only happens inside this window.
• Starting bid: the opening price; the first bid must meet it.
• Reserve price (optional): a hidden floor. If bidding ends below it, the auction closes with no winner and no sale, so use it to protect a minimum you will actually accept.
• Buy Now price (optional): a fixed price a buyer can take instead of bidding, available only until the first bid lands. Once anyone bids, Buy Now disappears and the lot is auction-only.
• Require buyer approval (optional): when on, buyers must be approved (through an application form) before they can bid or use Buy Now, so you can vet who is in the running before the sale completes.

Shipping and fulfillment

How the material reaches the buyer is part of the listing:

• Pickup only: buyers collect in person, which is common for hatching eggs. Turning this on removes shipping from the listing.
• Seller coordinates shipping: you arrange and pay for shipping rather than the buyer self-arranging.
• Requires cold-chain handling: flags that the material must stay temperature-controlled in transit, which shows buyers a cold-chain badge and sets expectations.
• Ship-from or pickup location: where the material leaves from or is collected.
• Container required: the shipping container the material needs. The options match the material and preservation method, so frozen material offers a dry shipper (nitrogen vapor), a liquid nitrogen tank or dewar, or an insulated cold-chain box, while hatching eggs offer an insulated egg shipper, a foam-lined corrugated box, or a climate-controlled box. Choose Other to describe a container that is not listed. Naming the container tells buyers exactly how their material will travel.

Media, description, and fees

• Photos and videos: add your own, or pull from the linked animals' profiles. The first image is the one buyers see on the listing card.
• Description: lineage, certifications, fertility expectations, handling notes, and transfer terms. This is where you make the case for the material.
• Seller covers buyer service fee (optional): buyers normally pay a 5% buyer service fee on top of the price. Check this and you absorb it instead, so the buyer's total is just the price. It can make a listing more attractive, at the cost of a slightly lower net to you.

The listing lifecycle

You can save a draft first and publish when ready; active listings are public and appear in marketplace search. Later you can edit, pause, or cancel a listing (auction times and bids can only be edited before the first bid). Cancelling a listing releases any reserved quantity back into your inventory, so nothing is left stranded as held-for-buyer.

Cancelling and refunding are different actions for different moments. Cancelling applies before a sale: it pulls an unsold listing (or its remaining quantity) and frees that quantity back to Available. Once a buyer has actually purchased, you do not cancel that sale, you refund it, which returns the buyer's units to your inventory and pays the buyer back for them. You can refund a just-completed marketplace sale yourself while the material is still on hand, and through Creatures support once it has shipped or been handed off. See Shipping and tracking genetic items for how refunding a sale works and what it restores.

Related information

• Managing your Genetic Inventory
• Buying genetics on the marketplace
• Shipping and tracking genetic items

Updated on: 23/06/2026