I only just now found this so I didn't read the other one.
It's a rather interesting premise. Very background-horror style, where you feel a certain uneasiness from it but the story doesn't delve into it too much. I'm guess that they're basically teleporting all over the world and probably in different time periods/dimensions, and scavenge supplies from there. Their enemies seem to be some kind of human-salvage chimera where, if you kill the monster, you get the salvage left behind (assuming you didn't damage the salvage).
I like it. It's neat.