A factory turned into a battlefield, riot police armed with tasers and an activist who spent 100 days atop a chimney — the unrest that inspired Netflix’s most successful show ever has all the hallmarks of a TV drama.

This month sees the release of the second season of “Squid Game,” a dystopian vision of South Korea where desperate people compete in deadly versions of traditional children’s games for a massive cash prize.

But while the show, itself, is a work of fiction, Hwang Dong-hyuk, its director and writer, has said the experiences of the main character Gi-hun, a laid-off worker, were inspired by the violent Ssangyong strikes in 2009.