Lorca13: Ok, I've just downloaded NMS. Took 3 1/2 days to complete. GOG Galaxy says that NMS is installed. The "play" button is green, I clicked it and nothing happens. Any ideas what I need to do from here? Thanks.
EDIT: Got it working with the verify and repair option. I guess it needed to update to the 1.52.1 hotfix. I was nervous because I thought it would download more gigs of data. Now that I FINALLY getting a taste of NMS after 2yrs of absence, the game looks very nice indeed but one thing I noticed is how poor is the performance. They need to fix that asap. I can run The Witcher 3 smoothly but not this game. And I suspect there is memory leaks in this game.
In addition to checking your usual graphic settings (and drivers, etc.) there's a tweak you can do to help encourage multithreading.
Go to your installation directory (...someplace...)\GOG Games\No Man's Sky\Binaries\SETTINGS and make a backup of TKGRAPHICSSETTINGS.MXML. Then search for and change the values for NumHighThreads and NumLowThreads both to "0" and save.
I'm running a not too new i7 box with a Geforce 1050 Ti (4 GB). No screamer by any current measure but it plays quite smoothly with mostly medium settings plus light shafts.