If the mod page contains different mod versions, ensure your downloaded version corresponds with the game version. And even those explicitly made for Sims 4 may not have been updated for the latest game version yet. Mods created for older Sims games usually aren’t compatible with Sims 4. If your Sims 4 mod isn’t working, the first step is to check the mod compatibility on its download page. Sims 4 Mods Not Showing Up on a Windows PC Read on to fix this common issue and enjoy new possibilities in Sims 4. Additionally, we’ll provide instructions on recovering a missing mod folder. This guide will explain how to fix mods not showing up in Sims 4 on Windows and Mac PCs. However, sometimes, newly downloaded mods fail to show up in the game, and consequently, don’t work. They let you bring fantasies to life and add depth to an already extensive sandbox simulation. Mods are a major part of Sims 4, adding endless new features, from personality tweaks to unlimited money.