Survive for 50 days

Breed an animal with 6+ swimming and underwater breathing ability

Give birth to twins

Special Youtuber achievement to honor EmmaUniverse. Breed an animal with Black Fur (no melanism), Yellow Eyes, No Pattern, Poison Fangs, one Claw, Nimble Fingers and name it Emma

Special achievement to honor Erose. Breed an animal with Stinky Tail, Big Ears, at least one E Immunity Gene and name it Erose

Special Youtuber achievement to honor JessiMew. Breed an animal with Black fur, White Pattern Color, Violet Eyes, two Claws, Big Body, Ram and name it JessiMew

Special achievement to honor Seri! Pixel Biologist! Breed an animal with White Fur (not albino), Red Horn Color, Antlers, at least 1 Berry Paw, Webbed Hindlegs, Fishing Tail and name it Doeli