To breed animals in Fields of Mistria, buy two Heart Shaped Treats for the species from Hayden’s Shop, then feed one to a male and one to a female of that species on the same day. Both must be adults with at least 2 hearts, living in the same barn or coop, with at least one empty space left in that building. If it worked, a stork icon appears next to them in your Animals menu, and the baby arrives four days later. Below we cover every requirement, treat prices, how baby colors are decided and how to reach the rare seasonal variants.
This reflects the 1.0 release of Fields of Mistria on PC. Breeding was in the game from the start of Early Access, and NPC Studio’s Early Access announcement sums up its purpose: breeding is how you “discover rare color variants.” Colors are purely cosmetic, so breeding never changes what an animal produces.
Step 1: Meet the Requirements
Both parents must be:
- The same species. A cow pairs with a cow, a chicken with a chicken.
- One male and one female. You choose each animal’s sex when you adopt it from Hayden.
- Adults. Coop animals mature in 3 days and barn animals in 5.
- At 2 hearts or more. Hearts come from daily care, so a brand-new animal will not qualify right away.
- In the same building. Move one of them over through the Animals tab of your Journal if they live apart.
- Given their treats on the same day.
The building also needs at least one free space for the baby. A small barn or small coop holds four animals, a medium eight and a large twelve, so a full building will never produce offspring.
Step 2: Raise Hearts to 2
Hearts come from heart points, and 2 hearts takes 220 of them. By dataminers’ point values, petting (with the Interact button), feeding and letting an animal out in clear weather are worth 5 points each, with a 2-point bonus on days it is both fed and petted, while being left out overnight or sent out in bad weather costs 5. Hand-feeding suitable crops or forage earns extra. At those rates, an animal you care for every day reaches 2 hearts in roughly two weeks. Animal toys help too, and they are placed like any other furniture, as covered in our guide on how to move furniture.
Step 3: Buy and Give the Treats
Heart Shaped Treats are sold in the Animal Supplies section of Hayden’s Shop at Sweetwater Farm, just west of your farm. Here are the details:
| Treat | Price | Available |
|---|---|---|
| Heart Shaped Chicken Treat | 150t | From the start |
| Heart Shaped Cow Treat | 300t | From the start |
| Heart Shaped Duck Treat | 225t | After “Upgrade Hayden’s Barn” |
| Heart Shaped Rabbit Treat | 300t | After “Upgrade Hayden’s Barn” |
| Heart Shaped Sheep Treat | 300t | After “Upgrade Hayden’s Barn” |
| Heart Shaped Horse Treat | 390t | After “Upgrade Hayden’s Barn” |
| Heart Shaped Capybara Treat | 300t | After “Upgrade Hayden’s Barn”, from Winter 1 |
| Heart Shaped Alpaca Treat | 390t | After “Upgrade Hayden’s Barn”, from Winter 1 |
You need two per pair. Hold a treat and interact with the first parent to hand it over, then do the same for the second. Open the Animals tab in your Journal: a stork symbol next to their status means the pairing took. If you do not see it, one of the requirements above is missing, most often the free space or the heart level.
Step 4: Wait for the Baby
The mother gives birth four days later, or in the case of chickens and ducks, the baby hatches. Your Ranching skill also gets a small experience bump the day after a pair is created. The baby then grows like any adopted animal: 3 days for coop animals and 5 for barn animals.
While expecting, both parents are locked in place. NPC Studio’s patch notes confirm that animals expecting offspring cannot be sold, moved to another building or put in Hayden’s daycare. If you plan to rebuild, finish breeding first, or read our guide on how to move your barn before you buy the treats.
How Baby Colors Work
Every animal color belongs to a rarity tier, from Tier 1 up to the Tier 6 seasonal variants. The baby’s color and sex are locked in the moment both parents eat their treats, and the color is picked at random from the tier the pairing produces. It does not blend the parents’ colors. The breeding rules:
- Two parents of the same tier always produce a baby one tier higher (up to Tier 5).
- Parents one tier apart produce either the higher parent’s tier or one above it, roughly half the time each.
- Seasonal variants (Tier 6) are only a chance from two Tier 5 parents, and a much smaller one from Tier 4 with Tier 5. Two Tier 6 parents always produce a Tier 6 baby.
- The season depends on conception. Feed the treats in summer and you get a summer variant, even though it is born after the season changes. Each seasonal variant also comes with its own cosmetic.
New colors you breed also become available when adopting from Hayden, and rarer colors sell for more there. If family life is on your mind for your character as well as your herd, our marriage guide covers the 1.0 route to children.
Frequently Asked Questions
Why didn’t my animals breed in Fields of Mistria? Check the list: same species, one male and one female, both adults with 2 or more hearts, both in the same building, treats given on the same day, and a free space in that building. No stork icon means one of these failed.
Where do you buy Heart Shaped Treats? From the Animal Supplies section of Hayden’s Shop at Sweetwater Farm. Chicken and cow treats are available from the start.
How long does it take for a baby animal to be born? Four days after both parents eat their treats. It then takes 3 days (coop) or 5 days (barn) to grow up.
Do rare colors produce better items? No. Colors are cosmetic. Production depends on the animal’s hearts, not its color.
Can you breed your pet? Breeding covers the barn and coop animals Hayden sells. There is no Heart Shaped Treat for cats or dogs.