A Building Full of Cats is a hidden object brain game where you search to find and pet all the cats in pictures of each room. You play by tapping on the hidden felines in monochrome illustrations of different domestic scenes. If you find all the cats in the building you can try the developer's other game like this, A Castle Full of Cats.

With 300 cats to find across 5 floors, and 50 secretly hidden cats, there's plenty of searching to be done. It's a game about the satisfaction of finding every cat in a particular location. It's compelling enough for a distracting collect-a-thon and simple enough for really young players.