Photo by Bruno Guerrero on Unsplash
Two horror movies made by YouTubers on shoestring budgets just outgrossed most of this year’s actual blockbusters. Obsession cost about $750,000 and has pulled in over $400 million worldwide. Backrooms cost under $10 million and delivered the biggest opening weekend A24 has ever had, plus the biggest debut in history for an original horror film. No franchise. No real marketing spend. Just an audience that actively wants to be terrified, and turned up in numbers nobody in the industry predicted.
None of this should surprise a gamer. Backrooms didn’t start as a movie. It started in 2019 as one unsettling photo on 4chan, an endless maze of beige carpets and yellow walls that the internet decided was somehow worse than any jump scare. That grew into a meme, then a web series, then games, years before Kane Parsons ever picked up a camera. The audience that turned Backrooms into a $300 million film already existed. Gaming communities built it first.
So why does fear sell this hard? There’s a physical answer, and it’s the same one behind why a good hand of blackjack can feel as gripping as a boss fight. Gambling.com, home of online pokies that have paid out over NZ$18 million in a single hit, tracked what happens to gamers’ bodies during play, strapping heart rate monitors on players across 16 popular titles over 30-minute sessions. Dark Souls III pushed peak heart rates up 98% above resting rate during one boss fight. Fall Guys came a close second at 95%, in the final round of all things. Mario Kart topped the list for sustained stress across a whole session. Forget graphics, forget gore. The thread running through every one of these games was uncertainty: not knowing whether the next ten seconds end in triumph or disaster.
Same Wiring, Different Trigger
Horror pulls that lever through fear. You don’t know what’s behind the door, and your body reacts before your brain’s caught up. Pokies pull the exact same lever through stakes instead of shadows. You don’t know if the next spin lands the jackpot or nothing, and that uncertainty is what your nervous system responds to, not the outcome itself. Not-knowing is what keeps a spin compelling long after the graphics stop mattering, same as it’s what keeps someone walking further into an endless hallway they know is a bad idea.
It’s why Backrooms works as both a meme and a movie, and why a horror game can feel more physically intense than an action one. Uncertainty is the ingredient. The setting barely matters. Stick someone in an endless beige hallway with no idea what’s around the corner, or in front of a reel that hasn’t landed yet, and the heart doesn’t care which one it is.
A Genre Built On Not Knowing What Happens Next
This isn’t slowing down. Variety reported that industry analysts were genuinely blindsided by how hard low-budget horror competed against actual summer blockbusters this year. One exhibitor relations analyst put it bluntly: they knew indie horror was hot, they just didn’t know it was this hot. Parsons and Barker are part of something bigger too, YouTube creators dragging built-in fanbases straight into theatres, which means the gap between internet horror meme and box office hit keeps shrinking.
If you were exploring Backrooms-style horror online years before Hollywood noticed, none of this is news to you. You were already reacting to the same uncertainty that spiked heart rates in a lab study, the same uncertainty that’s made Obsession one of the most profitable films of the decade. Fear sells because not knowing is the most gripping feeling there is. Doesn’t matter if you’re waiting on a jump scare or waiting on a reel to stop.