so I know there's ways to "unlock" hydrus pets and nostalgic, galactic, and steamwork, but is there a way to unlock dark matter, or do you have to buy a potion? I enjoy working towards a goal so I was actually a little sad I'd just gotten a hydrus pet instead of making one, so if there's a list somewhere of all the ways to get all the different colors, that'd be great too!

The FAQ explains how to get different colored pets, but yeah other than the 4 you mentioned, the rest just come from potions (Dark Matter included)

ok cool thanks! Completely forgot about it being in the FAQ oops

You're welcome ^_^