Bungie has finally opened up about Destiny's six-player raid content designed to challenge top level characters.

Speaking with IGN, Bungie's Luke Smith described raids as "one of the pillars of the game". Players will need to group with five other friends and there will be no random matchmaking as communication will be essential, he add.

"The activity is going to take you and your group of five buddies into a place that you’ve never been. A place that you will return to frequently. And demand of you things you’ve never even really been asked to do in a shooter before," said Smith.

"It’s getting people together and getting them into a group and making your way down to the Vault of Glass and seeing what’s at the bottom of it – if you can get that far."

Unlike Strike missions, Raids will take some hours to complete. There will be no mission waypoints or other visual aids. Players will need to figure out how to proceed themselves. Smith added that players should not expect to succeed on their first attempts. Unlike Strike missions, which are tuned to a particular level, sections of raids will span multiple levels, requiring players to gear up as the progress.

"In a raid, when the raid begins at level 25, it’s not where it ends. Like part of going the raid is the journey of gearing up; building your arsenal to react to the situations that it’s going to ask you to go through," said Smith.

"The raid bosses are different: they’re still big monsters, much like what you’re going to see, they’re still scary, but they have a bunch of abilities that are unlike anything you’ve really experienced in a shooter before," he added.

"Raids are a really big bet for us. It’s a bit of a risk. Because the activity requires you to have a group of five other friends to play with," said Smith, indicating that casual players will struggle to access the content.

"Like, if the worst thing that happens is you get your group together and you all have a great time, and make your way through the first difficulty level of the raid? Wow, that’s going to be awesome. I bet you’ll want to come back. Hopefully the gear makes you want to come back."

Destiny comes to PlayStation 4, Xbox One, PlayStation 3 and Xbox 360 on September 9.