Hi, new to the group. :)

Wanted to share this awesome game that's NOT listed as working for Linux, but that's only because the devs can't give propper support. You can read their Linux related discussion on their forum, but the game works flawlessly on my Mint Rebecca (now Mint Sarah).

http://store.steampowered.com/app/378720/Thea_The_Awakening/

This is the kind of thing many Linux users don't pay attention to just because indie devs don't have the time to dedicate fully to this kind of games.

Some other games that work wonderfully on Linux (but are listed for us) are:
http://store.steampowered.com/app/107200/Space_Pirates_and_Zombies/
http://store.steampowered.com/app/252470/Space_Pirates_And_Zombies_2/

Hope they work for you too. :)