Sharing some indie games I found. I haven't played them in a long time so my impressions might be off.
https://www.youtube.com/watch?v=3fv-iwk9DWc
This war of mine - it's a survival game where you play as a civilian, although you can fight if you want. You have to scavenge, survive the winter, craft items, make food, find water etc. in a besieged city. It's based on real accounts of the Siege of Sarajevo. It's got permadeath and it is pretty tense psychologically. For extra desperation I really recommend that you don't read the wiki because of the spoilers.
http://www.starcommandgalaxies.com/
I only played the game it's based on, but this one sounds funnier. Devs nailed the presentation. I think it also has permadeath or at least a compulsory iron man system like the original.
http://www.unit9.com/project/astro-shark
And, well, Astro Shark. It's a shark that flies in space dodging missiles trying to rescue his dog girlfriend from aliens. If this plot isn't awesome I don't know what is.