Really gets at that optimizing itch! Lovers of Factorio would graduate to this one.

What an amazing game! And it is extremely well optimized - rant this on integrated AMD graphics. 30fps feels like 60 with the fourth iteration of Unreal Engine.
A pounding soundtrack by Daniel Deluxe finishes this polish on this arcadey, almost Doom 2016-like combat chess and platforming. If you're a fan of Mirror's Edge or Titanfall, you'll be right at home with the movement system.

Bought it four years ago and was too scared to play it. I finally picked it up two days ago, and I'm already done! I do recommend getting over whatever mental block you have to finish this game, it's not as scary as it might have seemed starting out, the main issue is puzzles with no clear solution, which is easily solvable with a quick trip to an online walkthrough text file.

Now I have to get through Outlast...

There's a few reasons I keep coming back to this game. My favourite one though is the shared cultural references to Akira that this game and lots of movies and TV shows have, for instance Stranger Things. The combat is my second favourite thing about it, and it holds up even in 2016 -- the slow motion is extremely well done and makes the regular motion that much more intense when you run out of power. The graphics are fine too, very crisp, and everything casts a shadow, and the player model doesn't feel floaty or anything. Finally the guns all feel really good, so much so that I have trouble nowadays finding video games where the guns feel that sparky and lethal.
This is my favourite first person horror shooter out there.

If you miss the atmosphere of playing doom or quake for the first time, your money is ACTUALLY better spent with $5 in devil daggers than doom itself. Hah.

Yeah this game will give you crazy nostalgia.

If you liked the first one, it's worth a gander, especially if you can find it on sale.

If you haven't played the first one, definitely pick that up first. Age-old advice, I know, but only one or two years passed between releases and the graphics haven't changed that much, so it won't feel too ancient.