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Fit Box Gym is a functional fitness center designed for Sims who love staying active. The modern build has a spacious commercial gym vibe, complete with plenty of equipment and dedicated areas for different types of workouts. Your Sims can work out in the CrossFit area, use various pieces of fitness equipment, freshen up in the locker room, or stop by the smoothie bar after training. The lot measures 30 x 30, and you can place it in San Myshuno or any world with enough space. Required mods:
Follow these steps to install Fit Box Gym on your Sims 4 game:
Download the mod file from the link above. Sims 4 mods typically come as .package or .ts4script files.
Open your Sims 4 Mods folder. The default location is: Documents/Electronic Arts/The Sims 4/Mods
Place the downloaded file directly into the Mods folder. You can organize mods into subfolders up to one level deep.
Launch The Sims 4 and go to Game Options > Other. Make sure "Enable Custom Content and Mods" is checked.
Restart the game if it was already running. The mod should now appear in your game.
Important: Always back up your save files before installing new mods. After Sims 4 updates, mods may need to be re-downloaded or updated by the creator.
Platform
The Sims 4 (PC/Mac)
Pro tip: If a mod stops working after a game update, check the creator's page for an updated version. Broken mods can cause the game to behave unexpectedly.
Created by
Sierrathesimmer
0 ratings
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Published
August 14, 2026
Source
MustHaveMods.com
Last Updated
September 9, 2026