TIPS ON HOW TO ADD LOTS OF SIMS!
First you need TWO sims to get married, let the girl moved in boy's house. Then you tap on the girl's house and then tap "ADD NEW SIM"
NOTE that there's a SIM's LIMIT on each Level
Theres loads more info this game, right here, with some cheats and tips, answers and The Sims FreePlay walkthrough.
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