Rust Genetics Calculator
Plan your crossbreeding. Enter the genes of the clones you have and see the most likely offspring — and the exact odds of hitting a target genome like GGYYYY.
Your Plants
Click a gene tile to cycle G → Y → H → W → X. Add every clone you have for the best odds.
Best Outcome
Odds of a single cloned plant rolling this exact genome from your current plants.
How Rust Genetics Work
Every plant in Rust has six genes. Three are good — G (growth speed), Y (yield) and H (hardiness) — and two are bad — W (higher water need) and X (empty).
When you clone a plant and grow it in a planter next to other plants, it crossbreeds: for each of its six gene slots, it can take a gene from a neighbouring plant. Surround the clone you want to improve with plants that carry your target genes, and over a few generations you breed toward a “god clone” — usually GGYYYY for a fast, high-yield crop.
Frequently Asked Questions
How does crossbreeding work in Rust?expand_more
When a cloned plant grows in a planter, each of its 6 gene slots can be replaced by a gene taken from the surrounding plants. So the more plants with the gene you want at a slot, the higher the chance your clone inherits it there.
What do the genes G, Y, H, W and X mean?expand_more
G increases growth speed, Y increases yield (crop amount), and H increases hardiness. W (water need) and X (empty) are the bad genes you want to breed out.
What is the best genome in Rust?expand_more
For most crops the ideal is a mix of Growth and Yield — commonly GGYYYY or GYGYGY. Pure GGGGGG grows fastest; YYYYYY gives the most crops per harvest.
How do I use this calculator?expand_more
Add every clone you own and set each plant's 6 genes. The tool shows the most likely gene per slot and lets you set a target genome to see the exact odds of breeding it.
How many plants should I put in a planter?expand_more
A large planter holds up to 9 plants. Surround the clone you want to improve with breeder plants that carry your target genes to raise the odds each crossbreed.
Related guides
How Rust plant genetics actually work: the 6 genes, crossbreeding, cloning a god clone, and the best crops to farm. Real tactics, no fluff.
Cloning copies a plant's exact 6-gene genome with no rolling. How to clone, run a mother plant, keep clones pure, and when to clone vs re-breed.