Here's something interesting, the Path of Exile team have put out a news post giving some answers to questions from the community and it has some interesting bits in it for us.
Zap Blastum: Galactic Tactics looks quite unique, a top-down shooter where you hop from one bit of cover to another with simple controls and they claim it's "The cover shooter anyone can play!".
Chronicon might not be a familiar name to some, it's not exactly hugely popular but it does have some of the best action-RPG gameplay available on Linux.
Lost in Sky: Violent Seed is one I've been following for a while and it's really looking good now, it's also on track to release soon with Linux support.
A game I gave a little shout-out to recently, the multiplayer action RPG Transformice Adventures is planning to support Linux and it's now live on Kickstarter.
The creative platformer DASH: Danger Action Speed Heroes is releasing soon but for those interested in help to test, you can quite easily grab a beta key.
Truthfully, I didn't get very far with The Swords of Ditto as it had game-breaking bugs on Linux when released. They were later fixed and now a massive overhaul to the game is out.
Black Mesa, the fan-made Early Access recreation of the original Half-Life is still progressing towards finishing the final content and it's looking damn good.
Fearmonium from developer Redblack Spade looks like an action-platformer that could be on the different side, with slightly freaky yet intriguing visuals.
Pandemic Express - Zombie Escape puts you and up to 30 people in a large open-world as you try to escape on a train and it just went into Early Access today.
Tea, Earl Grey, Hot. These are the voyages of the starship Venture in Space Impossible, an open-world sandbox space adventure where every block matters.
It's been quite a while since NerdRage Studios (Jump Gunners) gave a proper update on the progress of the retro-inspired sci-fi shooter Xenosis: Alien Infection and they have a new teaser.
Okay Valve, you have my attention, you've been busy I see. Counter-Strike: Global Offensive Danger Zone, the Battle Royale style game mode just got a huge Sirocco update with more to come.
SKYHILL: Black Mist from Mandragora and Klabater looks like a promising survival-action game with some stealth elements and the good news is a Linux version is planned.