$118 million horror hit Backrooms has become the clearest sign yet that Hollywood is raiding Reddit for its next big ideas. What began as a niche thread on the r/backrooms subreddit has grown into a full‑blown internet phenomenon, with users collectively building a shared fictional universe from a single eerie image‑board concept.
By 2019, the subreddit had evolved into a creative hub where fans expanded the mythology through stories, theories and collaborative world‑building, unknowingly laying the groundwork for what would become a major studio release. That grassroots online creativity was later picked up and amplified by digital creator Kane Parsons, known as Kane Pixels, whose viral YouTube series brought the concept to a wider audience and ultimately helped pave the way for the A24‑backed film adaptation.
