The Rat Kingdom is a secret level found in Skylanders: Imaginators. It can be reached by chasing one of the rats on the M.A.P. until it digs a hole, and then jumping down it. Once that rat is found, it will always be that rat. The level is available as early as the Sky Fortress and does not need unlocking. Unlike other levels in the series, it has a more open design to it, allowing players to play it however they like.
Softpaw says that the rats are hiding a treasure somewhere in their city, and asks the Skylander to find it.
- Unlike other levels in the series, the player can exit the level by talking to Softpaw at anytime as there is no specific "end" to the level.
- If the player goes to Softpaw without having found the treasure, he will suggest that the rats may have just made the whole thing up.
- The level acts as a base for several missions and challenges set in Danger Dungeon and the Mausoleum of Madness.