So as part of the recent Steam sale, I got DeadCore. To summarize, it's an adrenaline-fueled puzzle platformer. It'll remind you a lot of Portal 2 and that game CloudBuilt. (Which I also recommend) Let's watch a little video. Spoiler It's the sort of game where you really can just kind of ignore the level and go wherever you want can. I'm watching that video, and the route that I took through those first two levels looked entirely different, all because I chose to be a dick and just ignore the set path and see where I could go. It's a ton of fun. Do consider picking it up.