Posted this in another comment section:
Metro needs more patches. Game crashes/minimizes every 30 - 90 seconds. I'm on a 1080ti running it on Steam. Clicking the icon puts it back in, but that's no way to play. Audio hitches. Game stutters a bit, despite the FPS counter sitting around 80 on High. I had it on Ultra but lowered it to see if it'd fix the crashing. Motion blur can't be turned off. Game not responding from time to time. *sigh* It's a shame. It looks like the story will be good, but not with all these problems.
Also, I pre-ordered it on Steam when it first showed up since I loved the previous two games. I think I'll have to set it aside for a bit (a year maybe, who knows) while they fix bugs.