The Extradimensional Cat Deviant in Once Human is an adorable Territory Deviant that you can get early, brightening up your base and helping you heal faster while you sleep. Here's how to find and catch the helpful critter.
Where to find the Extradimensional Cat Deviant in Once Human
The Extradimensional Cat can be found in a house in Deadsville, Dayton Wetlands, in Once Human, at approximately coordinates 4754 and -6549. If you don't see him there, switch worlds until he appears. Once you've found him, press "F" to capture the Deviant. You may have to repeat the capture process a few times to claim the cat.
You only need to be level 2 to enter this area, which means you can get this Extradimensional Cat as soon as you start playing and unlock Deadsville.
To use the Extradimensional Cat in Once Human, place it in an Isolated Containment Unit at your base. Once in the containment unit, it will automatically roam around your base if it has more than 30 Deviant Power. It will become inactive when its power reaches zero and will return to the containment unit.