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Apple has just named “SpongeBob Moves In” its App of the Week for this week. This means that from now through next Thursday, you’ll be able to download Nickelodeon’s popular city-builder for both iPhone and iPad for free—saving you a solid $4.

On Day 1, players help SpongeBob move into his Pineapple house, get a job at the Krusty Krab and begin building their own Bikini Bottom. As your town begins to thrive, you’ll unlock new characters, buildings, decorations and areas like Jellyfish Fields.

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App Store Editors’ Notes:

Help SpongeBob SquarePants turn Bikini Bottom into a bustling metropolis—and a great place to eat Krabby Patties—in this fast-paced city-builder. It’s a blast constructing locations from the cartoon to keep a growing population happy and fed, all in a breezy package full of lovable characters and outrageous humor.

Here’s a video showing the game in action:

There’s nothing truly groundbreaking about SpongeBob Moves In—there are dozens of similar builders with TV tie-ins. Fans of the show will obviously appreciate the nuances more than others, but anyone who likes a good city-builder should pick this up.

You can find SpongeBob Moves In in the App Store for free. Beware, though, the game is littered with in-app purchases.