A horror-themed game, Cat Fred Evil Pet, immerses players in a thrilling storyline. You find yourself living alone in a large house infested with rats and mice. To survive in this rodent-filled environment, you must gather money and food from every corner and cupboard. Keep an eye on your energy level displayed at the top, as depleting it to zero will result in losing the game. You have the option to buy a cat to help eliminate the rodent problem. However, simply purchasing a cat isn't enough; you must also care for it by buying cat food, toys, and a sleeping bed. Additionally, entertain the cat with music played through a radio cassette. If you accidentally harm the cat, it will transform into a monster and hunt you down. Should this occur, you must hide from the monstrous cat and replenish your energy with food. Gather food cautiously to avoid being caught by the beast, and unlock the main door to escape the house and win the game.

Zoe's Shop offers items such as Cat Food, Cat Bed, Cat Toy, Energy, Pizza, Bowls, and more. To purchase these items, collect money scattered throughout the house. There are lockers with numbered locks containing cash and keys to the main door; you can discover the locker password digits by finding notes. Alongside money and food, collect notes and solve puzzles to crack the locker code. In addition to these challenges, you face water leakage issues. Locate the valve, screwdriver, and electrical tape to repair the water pipe in the basement. However, the basement door is locked, so find the keys to open it. Various tools, like a hammer, are available to break open piggy banks.

Survive, hide, and escape from the monster to end the game by reaching the neighbor's house. The initial days serve as a tutorial, helping you understand the controls and adapt to your surroundings. As days pass, the horror gameplay intensifies with a terrifying monster, offering more chilling entertainment as you progress.