The Wii version of MySims Kingdom takes a departure from The Sims franchise and begins with a character living in a run-down kingdom with a king desperate to bring happiness back. The kingdom's Wandoliers, wand-equipped Sims that worked to keep the kingdom in order, have long since retired or moved away and it is up to the player to become the new Wandolier and restore order. The player's job is to rebuild, or remodel, homes and other structures for the characters using scrolls given to them by the islanders, and complete tasks that the islanders assign. Players must collect essences to unlock these scrolls and gain new items from them, and collect "mana" used to create furniture and structures and in return the player is given essences, scrolls, King Points (occasionally) and outfits for their Sim. As the kingdom's happiness increases, new islands are unlocked. To unlock more places, the player runs errands until they collect enough "King Points". A second set of missions are handed out before reaching the end of the game and achieving a special award.
Once the player has collected enough points to have reached King Points Level 5, they unlock the Reward Island which is an island at the top-left of the map for the player to build in as they please. On the Reward Island, the player is given the ability to place Figurines, Essences, and Flowers that have been collected throughout the game, as well as Windmills to power contraptions. Upon reaching King Points Level 5, the player can then also view the credits whenever they please.
Players can also interact with citizens by doing certain things with them, such as having a picnic. They can also customize characters using the outfits obtained as a reward for performing certain tasks. Some items in the game are interactive such as televisions, stoves, computers, video games, etc. Unlike other games in The Sims franchise, the player's Sim does not have needs or wants, although eating and sleep is optional.
In the Nintendo Wii version of MySims Kingdom, the Nunchuk is used for direct movement and the Wii Remote used for object moving and building. Players can also use the Wii Remote to go fishing at the fishing spot located around every island. Shaking the Wii Remote is used to chop down trees or go mining to gain different essences. Occasionally islanders will ask the player to explore the Kingdom collecting certain things such as fish, figurines and armor.
