Some specific online game titles may be rated "AO" (means Grownup Only), figuring out game titles which have written content ideal for only adults above the age of 18. Additionally, online game titles should also have an ESRB see that warns that any "online interactions aren't rated with the ESRB". https://qiandduo.net/the-role-of-online-games-in-creating-virtual-workspaces-of-the-future/