Farming
Rust Genetics Calculator
Enter the six genes from nearby parent clones and predict each offspring slot using Rust crossbreeding weights.
Patch 2026.07 · Updated 2026-07-11
Parent clones
Build the crossbreed
Use exactly six letters from G, Y, H, W, and X. Incomplete parents are ignored until all six slots are filled.
Predicted offspring
GGYYHH
Slot 1GGrowth
Slot 2GGrowth
Slot 3YYield
Slot 4YYield
Slot 5HHardiness
Slot 6HHardiness
Planning score: 10. G and Y favor production, H adds hardiness, while W and X reduce the score.
Weight reference
How each slot is resolved
| Gene | Meaning | Weight | Type |
|---|---|---|---|
| G | Growth | 0.6 | positive |
| Y | Yield | 0.6 | positive |
| H | Hardiness | 0.6 | positive |
| W | Water | 1 | negative |
| X | Empty | 1 | negative |
Quick answers
Frequently asked questions
Why can a predicted slot show a question mark?
A question mark means two or more genes have the same highest weight in that slot. The input does not produce one deterministic winner.
Why do W and X count more heavily?
Crossbreeding uses stronger weight for red genes. One red gene can outweigh one green gene, so parent placement matters slot by slot.