Extreme challenges & experiments - Flegm

If we had to sum up this category in one word, it would be: excess. Here you'll find videos built around a high-stakes concept: a survival challenge, a giant social experiment, a face-off filmed like an event. It's the playground of the Sidemen, the Stokes Twins, MrBeast and, on the French side, Amixem's big productions. Several of these videos sit right at the top of the all-time ranking, proof that the format pays off.

What sets an "experiment" apart from an ordinary entertainment video? The ambition of the setup. Here, people get locked in, made to survive seven days in the Arctic, secret rooms get built, a twenty-against-one speed-dating session is organized, a $20,000 budget is pitted against a $200 one. The concept is laid out right in the title, and it's exactly that crystal-clear promise that triggers the click, then the vote, when the video delivers on what it announced.

On Flegm, this category has one advantage: it travels across borders. A survival challenge or a concept-driven experiment makes sense whatever the language, which is why English-language videos sit comfortably alongside French productions here. It's also the category where you best measure the format arms race: year after year, the budgets, the running times and the stakes keep climbing. If you love videos that turn a crazy idea into a polished production, and you want the best of them without digging for hours, you're in the right place.

Explore also: the all-time ranking where several of these formats sit on top, our recaps for the highlights, the gaming category that shares this taste for spectacle, entertainment for the lighter gems, and the blog to dig deeper.