Pigeonetics is a game developed by the University of Utah Genetic Science Learning Center for web browser and mobile devices (iOS and Android). Players complete pigeon breeding challenges through trial and error. Students use evidence to learn the patterns of simple genetic inheritance, sex chromosome inheritance, and eventually incomplete dominance with dilution.
As curators of gender-inclusive resources, we like this game because it accurately portrays sex in animal species without conflating sex with gender or anthropomorphizing the animals. It also comes with a teacher guide.