Like YouTube, Roblox started as an online stage for young creators. As the company grows toward 100 million active daily users, contributors are making big money selling games.

Roblox sex games are commonly referred to on the platform as "condos". They're spaces, generated by users, where people can talk about sex - and where their avatars can have virtual sex.

Roblox is a popular gaming creation platform that sees millions of users playing daily. So what is Roblox, and why is it always thriving?