Use the RimWorld animal breeding calculator to project how fast your herd grows — by gestation, litter size and breeding pairs — built for the current 1.6 / Odyssey version.
Animal Breeding Calculator
Animal Breeding Calculator
New offspring expected: —
Herd size after simulation: —
Tip: —
Community-consensus breeding values for RimWorld 1.6. Actual offspring depend on fertility, pen space and slaughtering.
Breeding Strategy
Chickens and rabbits explode in numbers quickly (watch feed!); pigs are the fast meat farm; cows breed slowly but pay off with milk and beef. Keep one male per several females for steady output.
RimWorld Breeding FAQ
How many animals can I keep?
As many as your feed supply and pen space allow — a breeding herd needs food year-round, including winter hay.
Which animal breeds fastest?
Chickens and rabbits have the shortest cycles; muffalo and elephants take months per birth.
Plan winter feed with Livestock & Feed Calculator.