If your animal splicing experiments are starting to feel a bit stale, there's some good news; park management sim Let's Build a Zoo is getting some aquarium-themed DLC later this year, opening up the potential for even more adorable/terrifying creature hybrids in your life.
Let's Build a Zoo, if you've not yet had the pleasure, melds familiar zoo tycoon gameplay - in which the aim is to build and manage an appealing (and hopefully lucrative) park, importing and breeding animals, managing staff, and so on - with a couple of unique twists.
There's a morality system - giving players the choice between maintaining a happy, ethical zoo or turning it into something considerably more dubious - as well as a compelling DNA splicing hook, enabling fearless tinkerers to combine any animals they've acquired into more exotic specimens, like crocoducks, giraffephants, and chickow.