Did the recent release of Alien: Isolation stoke your desire for more extraterrestrial adventures? GOG.com is hoping to scratch that itch with their most recent promotion: you can download Aliens vs. Predator for free from the company’s site.

Available until Friday, the classic FPS is also a way for GOG to test their Galaxy multiplayer client. In a press release, GOG VP of online tech wrote, “We’re ready to take in more gamers, and AvP seemed like a natural choice: it’s high up on our community wishlist, and it’s definitely one of the all-time best FPS titles. It also allows for testing Galaxy in a more dynamic environment.”

The press release notes that “Galaxy testers will soon be able to play AvP with their Steam friends using GOG Galaxy’s cross-play feature, as the game is scheduled to receive a dedicated cross-compatibility update on Steam.”

In addition, GOG announced that they’ve upped the total number of Linux-compatible titles to 100 with the addition of Baldur’s Gate, Planescape: Torment, Papers, Please, and others. You can see the full list of Linux compatible games on the GOG website.

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