Planets³ is a 3D open-world voxel-based RPG (first person view) on Kickstarter. It was over-funded, but sadly it didn't hit the Linux stretch goal. Thankfully the developers won't be excluding Linux gamers.
If you haven't heard of Outcast before then you are either young or living under a rock, possibly both! Outcast was a revolutionary open-world action-adventure game back in the day. Outcast Reboot HD is promising Linux support at a hefty stretch goal.
Sadly this one seems to have been missed, it was released last month for Linux, but as it's not a brand new game (only new to Linux) it didn't pop up as new to Linux on Steam. Ballpoint Universe Infinite is a shoot-em-up adventure game featuring artwork entirely drawn in ballpoint pen.
Sipping on absinthe in a dark and potentially dangerous place doesn't seem like a good idea. But then again Spate is already pretty weird, so why not spice it up a bit more? Let's see what this piece of mystery and weirdness has to offer.
Tom Sparks and the Quakes of Ruin is a great looking 3D diesel-punk action-adventure game full of crazy weapons, exciting combat and exploration of mysterious underground worlds.
KeeperRL is a Dungeon Keeper and Dwarf Fortress inspired dungeon simulator built on top of roguelike mechanics. You become a Sauron-like character, searching for ultimate knowledge of destruction.
A mature, story-oriented adventure game with a unique style. Currently seeking funds on Kickstarter. They've just announced Linux support as standard, rather than as a stretch goal as originally planned.
Night In The Woods is a 2D story-focused adventure/exploration game with many extracurricular activities to enjoy, characters to meet, and secrets to discover. After being Kickstarted last year they now have a full trailer and pre-order available.
Shipwreck is a top down adventure game in which you must travel the land, explore dungeons, and defeat monsters to earn safe passage off the island on which you are stranded. Shipwreck is the first game from Brushfire Games, a small game studio in Redmond, WA, run by brothers Nick and Joe Gravelyn.
Moebius: Empire Rising from Jane Jensen will not see a Linux release when it has the official release this April, despite hitting well over the Linux funding goal.
Do you remember Voxatron? You don't? Well Voxatron is currently in alpha and it was part of a Humble Bundle named "The Humble Voxatron Debut!". Much has changed since then.
Good news goat fans, Goat Simulator is officially coming to Linux and promises some very odd action. One of the funniest games i've seen for a long time.
Spate is a very unusual looking platformer with a full-story about the death of your daughter and your battle with alcoholism. It has some of the most fantastic looking back-drops i've ever seen for a platformer.
Icebound is a dark fantasy visual novel that takes place in a steampunk world locked in the depths of an ice age, where alchemists possess supernatural powers.