In every sci-fi nerd's fantasy come true, the cast of Ridley Scott's 1979 space-set horror film Alien is reuniting 35 years later to voice their original characters in a new set of bonus missions for Creative Assembly's Alien: Isolation. Releasing as a pre-order exclusive first before being made available for download some time after the game's release, the Nostromo Edition of Alien: Isolation will allow players to take on the role of Ripley, Dallas or Parker in two missions based on scenes from the film.

Sigourney Weaver, Ian Holm, Tom Skerritt, Veronica Cartwright, Harry Dean Stanton and Yaphet Kotto all lend their voices to the DLC missions, and in a new feature for Alien: Isolation - Nostromo Edition, five out of the six returning cast members talk a little bit about what it was like to take a trip back in time for the video game.

The featurette also offers some behind-the-scenes footage of the actors recording their lines. As with the Alien: Isolation DLC trailer, the fact that they're all 35 years older than they were when the movie was made (Tom Skerritt, Harry Dean Stanton and Ian Holm are all in their eighties), which means that it's a little incongruous to hear their present day voices coming from much younger characters. That isn't quite enough to dampen the appeal of this reunion, however.

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The first Alien: Isolation DLC mission, "Crew Expendable," requires players to co-ordinate with other members of the Nostromo crew in order to lure the alien into the ship's airlock. The second mission, "Last Survivor," picks up after the rest of the crew has been killed off and Ripley is left alone to activate the ship's self-destruct sequence and get to the escape shuttle. It effectively allows gamers to play through sections of the movie, which is an awesome idea.

If anything the two DLC missions are a little bit too awesome. The response to the announcement of the Nostromo Edition was mixed, as some gamers were irritated that game content featuring most of the cast of the original Alien was being held back as a pre-order exclusive and then later sold separately, rather than simply being included in the game. For those who choose to opt out of this additional content, Alien: Isolation's main campaign looks like a joyfully scary experience in its own right.

Alien: Isolation releases October 7, 2014 for PC, PS3, PS4, Xbox 360, and Xbox One.