Sony has taken the wraps off a Metal Gear Solid 4: Guns of the Patriots Database.

Konami Online’s Brandon Laurino made the announcement on SCEA’s blog yesterday, revealing that the Metal Gear Solid 4: Guns of the Patriot Database would be available on the PlayStation Store update today.

Laurino explained that “The MGS4 Database is a free, downloadable interactive application that contains the official knowledge base of everything that is Metal Gear, reaching all the way back to the very beginning of the franchise. Including complete storylines, character profiles, relationship diagrams, and much more!”

“The MGS4 database is a great way to catch up for someone new to Metal Gear, as well as a useful resource for any veteran of the series, with complete official details on every aspect of the intricate Metal gear lore.”

For fans who have not yet played through MGS4 don’t worry because the MGS4 Database blacks out spoilers until you have played through the entire game.

In addition Laurino disclosed that there is already new, free downloadable content available (new camouflage and a new music track for the in-game Ipod) for the game under the Extras option of the main menu. Apparently more content will be added so gamers should check this option often.