Some express online game titles may be rated "AO" (means Grownup Only), figuring out online games which have material appropriate for only Grownups about the age of eighteen. Moreover, online games have to also have an ESRB notice that warns that any "online interactions are not rated from the ESRB". https://huipeng688.com/the-role-of-real-world-physics-in-online-games/