Disclaimer

Mewgenics Tools is an unofficial fan-made resource. Not affiliated with, endorsed, sponsored, or approved by Edmund McMillen, Tyler Glaiel, or their studios. All game-related trademarks belong to their respective owners.

Tool accuracy

The breeding planner produces heuristic suggestions, not exhaustive optimal paths. Results are guidance — actual outcomes depend on RNG and game mechanics that may not be fully captured in the model.

Trait probability calculations are mathematically exact for standard Mendelian dominant/recessive single-locus genetics. Traits with more complex inheritance patterns (e.g. polygenic or epistatic) may not be accurately represented.

Data sourcing & patch lag

Game data (traits, classes, stats, ability values) is compiled from community sources and cross-checked where possible, but may lag behind game patches. Numbers accurate as of the version shown on each tool page. If you spot a discrepancy, please report it.

No warranty

All tools and content are provided as-is. We make no warranties of fitness for a particular purpose. Use the tools to inform your in-game decisions, not as a guarantee of outcome.