I've got a few more:
Thunder Helix
A very retro flight simulator that is very MS-DOS esque. You can even pick up camels and drop them in the Persian Gulf!
Relentless Frontier
A badass GZDoom FPS where you chop up space grubs with a force axe and turn them into ammo for your other weapons, as well as armor and health. Also has some pretty cool lore as well.
HOLE
I have no idea what this game is about. My Steam review for it describes it as simulating the life of a salaryman who falls into the black hole of gaming addiction and data piracy. It's a pretty fun tactical shooter that has great sound design and some creepy atmosphere that gets truly messed up once you get the key for the locked room on the third map. Trust me.
Blood West
A New Blood published joint that is an open-ended RPG set in a undead-infested portion of the Wild West called the Barren Lands. Pretty awesome, both the melee and gunplay are feel very punchy and rewarding and has some pretty good stealth mechanics.
Fallen Aces
Another New Blood published game, this one a cel-shaded Immersive Sim set in a very pulpy Thirties. You can interact with damn near everything, like eating a banana and throwing the peel to trip up a goon. You can even pick up pigeons and throw them at people. Has some beautiful graphics and comic style cutscenes. It is also hilarious- I LMAO'd when one of the goons nearly saw me and then said "I guess I musta had another stroke or somethin'." when he gave up looking.
Maximum Action
Yet another New Blood joint, this one a janky-ass FPS that is a love-letter to Eighties and Nineties action movies. You dual-wield everything, even when driving motorcycles and tanks. Despite the jank, it's pretty fun and plays like Max Payne, F.E.A.R and TimeSplitters were hard-boiled in the same pot.