XIII is a cel-shaded first-person shooter based on the popular Belgian cult comic created by Jean Van Hamme and illustrated by William Vance. The game is loosely based on the first five comics. 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 in an alternate universe where the world has unfolded in a very different way following the assassination of John F. Kennedy. You must be damn important, because everyone is trying to kill you. As you progress, you learn more about your secret agent past and your curious name, XIII.

You unravel clues behind a conspiracy of epic proportions in an environment that breathes a comic book ambiance. Footsteps and shots are visualized in text and actions such as head shots are shown in a Serie: of still images. Aside from that, XIII has all the typical FPS elements: both stealth and action, more than 15 weapons (shotguns, crossbows, rifles, ...), interaction with environmental objects and a whole load of baddies in levels all over the world. During the game, you can learn a number of skills such as silent walking, lockpicking and dual weapons handling.