Look for an executable file named or S3Launcher.exe . You can right-click this file to "Send to Desktop (create shortcut)" for easy access. Common Launcher Troubleshooting
You can download the full game (which includes the launcher) from the EA App or Steam. sims 3 launcher download
C:\Program Files (x86)\Steam\steamapps\common\The Sims 3\Game\Bin . Look for an executable file named or S3Launcher
If your official launcher is broken (especially on modern Windows 10/11 systems), community-developed alternatives like LD's Sims3Launcher on Mod The Sims are highly recommended. These often include fixes for newer Intel CPUs and better performance. Finding Your Missing Launcher sims 3 launcher download
If your launcher won't open or isn't downloading content properly, try these steps: Re: Downloads disappeared in Sims 3 launcher - EA Forums