Question!

[Maniacal_Ferret]

I was wondering if I could make a free user made adoptables 'species' based off a Tv show or other games, maybe CS pets? I have read the rules for the CS thing, and they will be free to adopt, no one has to pay for them, I was wondering if it was okay? I didn't know if it was okay on here or not, so I thought I would ask to make sure?

Please let me know If i'm not making sense...