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.

Target search

Find a one-cross combination

ParentsPredictedMatching slotsResult
#3GGGYYY6 / 6Exact
#1GGYYHH3 / 6Closest
#2YGYGHH1 / 6Closest

Search checks every parent combination up to the selected limit and stops at the shortest exact result.

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

GeneMeaningWeightType
GGrowth0.6positive
YYield0.6positive
HHardiness0.6positive
WWater1negative
XEmpty1negative

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.

Does target search plan multiple generations?

No. It searches deterministic one-cross combinations from the clones entered above. Multi-generation planning needs verified inheritance and placement rules beyond this weight model.