As humans, we love competition. We love seeing people overcome incredible odds to win, to overcome. We relish in the triumph of the human spirit and bask in vicarious glories as if they were our own. That’s why we love the Olympics — and are attracted to way more terrifying competitions.

Sporting events and competitions centered around physical and strategic prowess are great lenses for examining the darker sides of the human condition — an obsession with entertainment, tensions across socioeconomic divides, a “them” and “us” mentality, a ruthless will to survive. Competition driven to the extreme gives us some fodder for the dystopian future of sporting where the stakes are much higher and victory isn’t signified by a medal, but by the fact that you’re still drawing breath. “You win or you die,” isn’t a concept unique to Westeros.

Competition and sporting in science fiction can get pretty #dark, and here are few of the darkest death matches, ranked from least to most crazy violent.

Rollerball

Rollerball isn’t quite as deadly as some of the other matches here, but that’s not saying much. Like roller derby on steroids, the stakes of rollerball are still incredibly high, and there are far-reaching implications and consequences for winners and losers, as they represent cities and the corporations that own them.

The Hunger Games

Kids selected to train and then represent their districts in a life-or-death free-for-all? Yeah, that feels a bit like “Olympics turned horrific.” In some districts, the representatives have been training their entire lives for the chance to qualify and compete. In others, it’s a death sentence by random selection.

Battle Royale

Battle Royale is like The Hunger Games before there were Hunger Games. Originally a novel by Koushun Takami published in 1999, Battle Royale also got the film treatment. Like The Hunger Games, the competitors are kids and it’s a televised fight-to-the-death match. In Battle Royale, though, students are sent to an island and outfitted with collars that explode if they break one of the rules of the game. When there’s only one student remaining, he or she is allowed to leave the island. Worst. School Trip. Ever.

The Running Man

Hailing from the era of Peak Schwarzenegger, The Running Man is the story of near-future television sensation by the same name. Prisoners are given the chance to run for their freedom, but if they fall short, they suffer a brutal, deadly fate. The televised bloodbath is opt-in, unlike Battle Royale and The Hunger Games, but has some of the pageantry characteristic of the latter (and the Olympics).

Mortal Kombat

Things are a little different in Kombatverse, as it’s a one-on-one fight rather than a deadly group match. It’s still a fight to the death, but there’s no complication of alliances or friendships, and the stakes aren’t district pride, but the right of your realm to invade another. So while you’re fighting solo, you’re kind of fighting for everyone a lá provisions in The Hunger Games, but more lethal.

Photos via Lionsgate / Murray Close

Megan is a freelance writer whose work has appeared on WIRED, Slate, Travel + Leisure and GigaOm. When she’s not writing, she’s hiking, brewing beer, and extolling the virtues of The Cranberries.