I have one world/save file since I bought the game in 2014. I play with aging off but I still have plenty of room to play out my ideas (2000 hours played). If I have a new idea, goal, or challenge I ...
just counted, i have 26 save files. its honestly because i get bored and just keep making new sims/storylines. my goal is to actually finish the save file i'm playing with currently!!