Recently I've been seeing a bit about a game called "Inside". I don't know much about it, other than it's in the same artistic puzzle-platformer as Limbo, but it reminds me so much of Monochroma, which I played back in 2013. The similarities may be coincidental, but this one was unfortunately overlooked by most people. I haven't played the whole game yet, but the demo was plenty of fun.
Get it for yourself: http://store.steampowered.com/app/265830/Monochroma/