A few for me lately:
Planet of Lana - 8/10. If you like Limbo, Inside etc you'll probably like this one. It's unlike those two with it's quite bright, colourful art style but gameplay offers a lot of similarities. My main complaint are the annoying fade-to-blacks between gameplay and "cutscenes" which aren't cutscenes at all, it would have flowed better without them.
Somerville - 6/10. I loved Limbo and Inside and this one is from a studio started by one of the guys who made those. This one fell quite flat for me sadly; too many bugs, fiddly gameplay and a narrative that didn't present itself nearly clearly enough. There's a Simon Says type sequence at the end which leads to multiple endings, but I've no idea how you're expected to know what to do to get them without a guide. It's presented side-on like Inside but plays with the perspective and lets you move towards and away from the camera too, which was something different.
Cocoon - this one is made by the other Limbo/Inside guy and although I'm only a few hours in, I already love it. Utterly beautiful visuals, wonderful synthy ambient soundtrack, and really compelling gameplay.