XIII

The main theme of the game is based on Robert Ludlum 's book The Bourne Identity , and features a man who is suffering from amnesia and quite possibly involved in the recent assassination of the President of the United States.

The hero knows almost nothing except that he must be important, since everyone is trying to kill him.

Gradually uncovering the mystery, the hero, learns more about his secret agent past and his curious name: XIII.

The player unravels clues, trying to solve a conspiracy set in an environment that breathes a comic book ambiance.

Footsteps and shots are visualized in text and actions: for example, head shots are shown in a series of still images.

Aside from that, the game has all the typical FPS elements: both stealth and action, more than fifteen weapons (shotguns, crossbows, rifles, ...), interaction with environmental objects and plenty of enemies in levels spread all over the world.

During the game, the player can learn a number of skills such as silent walking, lockpicking and dual weapons handling.

XIII for Xbox is currently worth €12.72 loose, €3.54 complete in box, and €8.75 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

XIII has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.

Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For XIII, loose is €12.72 and CIB is €3.54 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.

The PAL version of XIII is currently worth €12.72 loose, versus €10.93 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.