Hi, I'll throw in a few but I'll more look forward to reading others recommendations. Its hard to know where to look when there are so many released every day now. I'll list some I've enjoyed that will run on most hardware, forgive me if theyre a bit too obvious.
Banner Saga series. Weird unique art style, atmospheric, interesting world, enjoyable turn based combat.
This War of Mine. Great style, emotional. Sort of survival game based in the ruins of a semi fictional city.
What Remains of Edith Finch. Walking simulator based around the stories of various members of a family.
Banished. Nice little city builder sort of in the old Settlers style, will run on a 2ghz dual core and dx9 card with 512mb VRAM.
ShadowRun Returns/Dragonfall. Based off the tabletop game. Turn based combat, fantasy crossed with William Gibson sci fi world
FTL: I mostly played it for the soundtrack, games got style!
I've also got but not yet played To The Moon, Gods Will be Watching, Inside. All of which sounded interesting but Ive not got around to yet.