Fossil Echo is a pretty awesome looking story-driven platformer that has plans for a Linux version, it's not ready just yet but will be soon.
Speaking on the Steam forum the developer said:
QuoteHello! We decided to not have PC players wait while we finalized the Mac & Linux versions. We don't have a set release date yet for those, but they are coming soon. Thanks for your interest. Cheers :)
It has some truly lovely animations, art and audio so I am looking forward to seeing if it lives up to how it looks.
They are doing a Steam, GOG and Humble Store release, so hopefully all those stores will get the Linux version too.
Thanks to the guys in the IRC for pointing it out.
About the author - Liam Dawe