Spelunky is a popular 2D action adventure platformer with a large following in video game culture. The game originally released on PC in 2008 followed by a recreated version of the original game on Xbox 360 in 2012 along with PlayStation 3, PlayStation Vita and PlayStation 4 versions following a few years later.

The game takes inspiration from games series like Castlevania, Pac-Man, and multiple other retro titles of all genres. Spelunky is famous or infamous you could say, for its crazy difficulty and procedural levels. It holds a place among some of the best indie games of the 7th console generation like Braid, Castle Crashers and Super Meat Boy.

The documentary covers the origins, mechanics and rules of developer Derek Yu's indie platformer. Find out what went into designing the procedural model for Spelunky as well as the inspiration for the game's music and finding its place in the indie console market at the time.

Other cool tidbits in the documentary include interviews about the relationship between Johnathan Blow (The Witness, Braid) and creator Derek Yu, and how their friendship lead to Spelunky finding itself on Xbox 360.

Spelunky is available on PC, Xbox 360, PlayStation 3, PlayStation Vita and PlayStation 4.