The Legacy Challenge is one of the most well-known challenges in the Sims community, which first appeared in the TS2 and created by fan Pinstar the challenge was later adapted for TS3 and TS4.
The 100 Baby Challenge Sims 4 offical rules.It was created by Amiisays for TS2, and updated for TS4 by Snarky-Sims-Witch. The 100 Baby Challenge challenges players to have 100 babies in as few generations as possible. Below is a list of popular The Sims challenges that fans often participate in various ways, such as posting it on LiveJournal, various forums, Youtube or Twitch Let's Plays, or blogs such as Wordpress, BlogSpot or Tumblr.