If you have uninstalled and reinstalled the game, you may have lost your save files, here is how to recover your save files in case they were lost in the transition process. If you have re-installed your game on the same disk, you can find your save files by finding the installation folder of the new game (Right-click on the game, go to Manage -> Browse local files) Then step back one folder, you should now be located in the steamapps/common folder, in that folder you should find the Park Studio and Theme Park Architect folders, browse the Park Studio folder. Inside ParkStudio/Saved, you will find the SaveGames folder, copy or cut that folder in ThemeParkArchitect/Saved and the game should load your saves just fine! If you have installed the game on different disks at different times, then you will find the ParkStudio/Saved folder wherever your steamapps/common folder is located. Do not copy files or folders such as Config or Settings.json