Cat #1: Borowka
After using a key to unlock the next door, go down the stairs and Borowka will be waiting directly in your path.

Cat #2: Mela
After getting the bolt cutters in the Hardware Store, return through the courtyard to where you first entered this area and there will be a door with a chain on it. Cut it open and you will find Mela inside. The cat will leave you a Traveler’s Seal Key, which you can use on the door in the utility room in Apartment Block 34.

Cat #3: Karol
After getting the key from the basement, as you leave you will spot a cat running towards the playground next to the Hardware Store. Follow it there and pet it, and it will leave you a Core.

Cat #4: Cynamon
After powering up the tram, return to it and a door opposite the tram that was previously locked will now be open. Head inside to find a cat waiting for you, which will leave you a Core after petting it.

Cat #5: Merlin
After getting the Gravity Boots, you will head outside and launch across some pads, then have two options to take. Take the northern path and shift the Time Oddity until you are back on the ground, where you will see a cat run into a building. Follow it and pet it for a Core as a reward.

Cat #6: Balbina
After activating the switchgear, turn around and go back through the room you came from. In the hallway there is a door that was previously locked (you might have heard a cat meowing when passing through before), which you will now be able to enter. The cat will be waiting inside, with a Core as a reward for petting it.

Cat #7: Gus
Shortly after the previous gravity jumps, you will ascend the wall of a building. As you enter, look up to the left to spot another gravity jump behind some planks. Shoot the planks and jump over, then follow it into a room to find Gus. You will get a Core as a reward.

Cat #8: Bebola
As you walk through the operating rooms, the cat will be sitting next to an operating table. It will reward you with a Core.

Cat #9: India
After activating the power in the electronics store, you will be able to access the kiosk. Head through the hole in the back of this room to find the cat you would’ve been able to see from the utility area. Petting it will give you the Toy Store Key, which will be needed shortly.

Cat #10: Freya
Once you enter the cemetery, you will spot a cat run into the mausoleum. Use your bolt cutters to open the gate, the crawl through the space on the right to find the cat. You will be rewarded with a key to unlock Father Wojciech’s Office.