THE local head of Sony Computer Entertainment says Australia should have an R18+ rating for computer games, adding authorities should drop the idea that gaming is just for kids.

"Gaming has moved on, the choice of content has moved on and I think it is time Australia gets in step with the rest of the world and has an R rating classification," Michael Ephraim told AAP at a Playstation announcement in Sydney.

"I think it is just giving people choice. You give people choice for movies, books, whatever. Why aren't you giving them choice for gaming?

"The Government needs to move on, to stop thinking that gaming is for kids, gaming has grown up. Eight to 88 (year olds) play games now ... the average age of a gamer is something like 24 years old."

Australian attorneys-general are currently debating changing the national computer game classification system.

More than 55,000 submissions were received during a public consultation on the issue.