What appears to be the first gameplay footage from the Aliens: Crucible RPG game has leaked onto YouTube. Now, the game was officially cancelled last year so this footage is supposedly from an early build of the game dated 2007. The footage lasts for almost two minutes and shows the player wondering through a corridor and him and two other Marines are being attacked by aliens.
EDIT: Additionally more in-game screenshots of an early build of Crucible have been posted up on the Obsidian forums. They’re pretty cool. Thanks to funcroc for the link.