Clan (Group feature)

Clans were groups of people that could compete for the top spot on a game's Leaderboard. They got to the top spot by earning Player points from that game. The total player points from each person in the clan were added up to determine their spot. It was announced on April 22, 2014. Creating a clan required a Group, 500 Robux, and Builders Club. To invite someone to a clan, the person that the owner wanted to invite must have been in the group associated with the clan. Up to 100 group members could be in the clan at one time.

Removal
On December 12, 2018, the removal of clans was privately announced. stated on a DevForum post, "Now that Leaderboards and Player Points have been sunsetted, Clans are no longer a meaningful part of the Roblox Groups experience. Over the next few months, we will be sunsetting Clans completely to simplify the user experience." All users who purchased a clan will be refunded when removed. On January 23, 2019, clans were officially removed.

Even still, you can find Invite to Clan, Kick from Clan, Cancel Clan invite, and Buy Clan when filtering the audit log.