Re: The Sims 3 launcher won't open, instead goes directly into the game

@yosistakrista  When you launch the game initially, you're supposed to see the icon for the newest pack you have installed, which it sounds like is Seasons for you.  So that's definitely not the problem.

To be clear, only files in .Sims3pack form can be read by the launcher.  Any .package files you'd like to use need to be installed like mods, and any .zip, .rar, or .7z files need to be unzipped first.  Try placing just one .Sims3Pack into Downloads inside your game folder (the one in Documnets\Electronic Arts); put aside any other files you have in Downloads for now.  If that one file still doesn't show, move the entire Sims 3 folder from Documents\EA to your desktop, open the launcher to spawn a clean folder, and move over one file again to test.