In Key Simulator X, you use a key tool to unlock chests in different areas. These chests contain more keys of different rarities, coins, and other currencies that are used to purchase upgrades and unlock additional locations. Fuse keys to create more powerful components, or sell extra keys to earn coins.

You can earn some rewards right away by using in-game codes. Codes are given by developers so that players can claim free prizes and boosts that give them a head start in their experience.

You can earn even more exciting rewards with codes here at Pro Game Guides for awesome games like these, such as Sword Simulator Codes, Roblox Shovel Simulator Codes or Explosion Simulator Codes.

Here is a list of all working Key Simulator X codes.