Watch Chatroulette Users Play This Real-Life First-Person Shooter Game

British independent film company Realm Pictures unveiled on Thursday a short video of its elaborate, unique project: a homemade, real-life first-person shooter game—that operates on Chatroulette.

Using special cameras to live stream the game’s ornately built zombie set, Realm Pictures then invited a handful of users on the webcam-conversation site to play in real-time. “Rather than just prerecording something that looks like a first-person [shooter game], we thought we’d actually include the most important element there—which is the player,” explains creative director David M Reynolds in a behind-the-scenes video. “We thought, maybe we could take that video and stream it live to strangers on the Internet. Whatever we say, we will then do.”