Breeding optimizer

The breeding optimizer reads your roster from an uploaded .sav file and ranks possible pairs. Unlike trait-only calculators, it uses your actual cats, relationships, and—when present—breeding room stimulation from the save.

What it scores

• Stat potential for offspring, with class-aware weights
• Inbreeding risk via coefficient of inbreeding (COI)
• Love and hate relationships (mutual hate blocks breeding)
• Mutation synergy and ability pool quality
• Defect risk tied to COI and room stimulation (v1.1 mechanics)

How to use it

1. Upload a .sav file on the home page.
2. Open the Breeding Optimizer tab.
3. Optionally set a reference cat to compare COI and relationships across the roster.
4. Use the Breeding Planner tab for multi-generation chains toward stat or class goals.

See also: inbreeding (COI) and room calculator for stimulation targets.