Red Light Center membership has exceeded 6 million users.  To put that into perspective, that's about the population of Toronto Canada, the 7th biggest city in North America.  Touted as the only true adult MMOPRG, the online sex game launched in 2006 and offers a safe virtual environment for sexual exploration. The tremendous growth in user base is a testament to the popularity of Red Light Center, and interactive sex games in general.  Unlike other popular sex games such as SexVilla and BoneTown, RLC let's users have virtual sex with other people.

Some major features of Red Light Center include:

• Ultra realistic 3D environment based on city of Amsterdam
• Fully customizable characters
• Virtually limitless range of fully rendered sex acts and positions
• "Utherverse" social network - meet for real
• Virtual adult theaters, bars, sex clubs, and more
• Build and own your own virtual home or buiness
• Community event calendar and forum

Red Light Center offers a free basic membership for their sex game.

Link: Red Light Center