Hello ! I have downloaded a lot of Lots from TheSimsRessource, there was both CC or Lots with base game, but somehow it dosn't show up at all in my Library I have checked a lot of posts about it bu...
Then you just need to check if that is the folder the Game uses. Move the folder to your desktop open the game and start a new game. Does the folder get recreated? If not that is not what the game uses.