Like it or not, horror gaming is often built on jump scares. Deriding a good cheap scare ignores the endorphin rush that draws so many players to the genre, in the same way that the “elevated horror” trend forfeits some of the soul of schlocky slasher flicks and ghost movies. Don’t get me wrong, Silent Hill and Alan Wake deserve their flowers - but even those games would wither on the screen if Pyramid Head didn’t bust through a wall from time to time.

One unsung jump scare game in particular pioneered horror in the internet age, blazing everywhere from nascent social media to major television networks. In fact, if you had an internet connection circa 2005, there’s a good chance you played it. Alas, it was too ahead of its time, too successful at leveraging virality before viral horror was sought after. Next time you see a streamer throw their headphones across the room in fright, beware: the spirit of Scary Maze Game is right behind you.

Like Rick Rolls and chain emails, “screamers” propagated from the ability to share media with little pretext. Screamers existed before The Maze in the form of short animations and videos—even inspiring a series of German energy drink commercials—but Winterrowd’s game set itself apart by dint of being a game. You had to initiate the jump scare yourself, and doing so required sharp focus. It was less like watching a car crash and more like cranking a jack-in-the-box.

Understandably, reactions were big. And if you couldn’t stand by your victim and watch their freakout yourself, you were in luck, because there was this shiny new website called YouTube. Reaction videos are The Maze’s first milestone contribution to online horror, and they were responsible for the game’s mainstream popularity. Internet historian Jake Lee found Maze reaction videos as early 2006, which were shown on Web Junk, The Soup, and America’s Funniest Home Videos (which was the style at the time) and parodied on Saturday Night Live in 2010.