Supraland Six Inches Under is a First-Person-Metroidvania. That means, you're in a gated world and the more abilities you gather, the more parts of the world you can access.

The gameplay consists of roughly 55% exploration, 40% solving puzzles and 5% combat.

It was supposed to be a little DLC for Supraland , but it got a bit out of hand and got more and more ambitious. It can be considered "Supraland 1.5" because there are still a lot things from the first game, but at the same time it's a new world with a bunch of new mechanics.