Part 2
Cry of Fear
http://store.steampowered.com/app/223710/
A FPS horror game based on the Half Life 1 engine and can be quite unnerving at times with enemies ranging from traditional zombie like psychos to stuff dragged kicking and screaming straight out of Silent Hill (floating ghost women with knife wielding babies springs to mind)
Has a good plot twist to it and an interesting coop campaign that follows on from where the single player game ended (and makes you question what actually happened in the single player game)
Orion Dino Prelude
keep an eye out on this website
http://trek-industries.com/?post_type=forum
Every so often the dev's do a give away where they post unlock codes for the game, I believe there may be a one going on at the moment.
As for the game itself its basically a Killing Floor clone with dinosaurs and jetpacks, it was horrendously broken upon launch but at this moment and time most issues have been fixed while the game itself can be quite fun if you manage to get into a multiplayer game (AI bots are dumb in single player and by dumb I mean 'trying to kill a T-Rex with a knife while Raptors eat the objective' dumb)
Void Destroyer
This one is for modders only
http://steamcommunity.com/app/259660/discussions/0/648816742655449286/
The dev of Void Destroyer likes mods and modders so has a challenge in place where anyone with a modding background (that they can prove) who has a cool idea for a mod for Void Destroyer can contact the developer and potentially receive a free copy of the game so that they can make their mod come to life.
If you already own the game you can get more copies free by finding game killing bugs, once the dev verifies the bugs existence by duplicating it, you get a game key as a thank you.
As for what Void Destroyer is, it's a space Fps/Rts hybrid with semi-Newtonian physics and a very HomeWorld 2 feel to it where you build fleets and command them via an Rts overhead camera then dive down into the action by taking control of any unit you wish, from tiny snub fighters to kilometer long battleships, and then fight it out with the enemy in a very Wing Commander-esc fashion...
It's also INSANELY hard with somewhat awkward controls but could potentially win the award for most bullets on screen at the same time.