It's a pet breeding and collecting game set in a post-apocalyptic Earth with a scientific approach :) The creatures you can collect have genetics that follow a Punnett Square format (think AABB) so creatures within a single species have varieties in their appearances! Same with the offspring they can produce.
I see you've stopped in and found my giveaway already so I won't link that. I also have played TFO and I really enjoy it too. :) Very interesting story/quest lines.
If you have any questions, please do ping or message me at anytime! I hope you have a good time here.