I've been playing the System Shock Remake for about a week now and really enjoying it as the exploration is great, the atmosphere creepy, and there's tension in not knowing what you're going to find; much like the original. It
feels like a game from the 1990s, but at the same time looks and plays like a more recent game, which is was Nightdive's intention. Just don't go into it thinking it will look like the recent Dead Space Remake in terms of graphics, as SS is a much more retro experience.
There are several graphics options to tweak, including a DLSS mode, and my experience thus far is the game running very smoothly with no stuttering and no crashes. I may end up tweaking some of those settings I have at medium to high.
My memories of playing the original SS are blended together with the memories of SS2, as I haven't played the originals since installing them from CDs/DVDs, but it feels like the levels are much larger, very maze-like, easy to get turned around, and often have multiple routes to reach a certain area. Maybe Nighdive added to the original layouts? I don't know, but it's very well done, and the map is great.
Combat I found to be challenging (even on normal), especially at first when all you have is a lead pipe (or lucky enough to find the wrench which does more damage), and even when you start to find the different guns, ammo is pretty scarce so I found it better to conserve it for when I really need it. There's also a few types of grenades that can help with large groups.
The wrench does 5 more damage than the lead pipe, but it's hidden in a secret area.
There are quite a few guns, as well as ammo types, choosing the right combination will give you an advantage.
But inventory management becomes an issue, as you only have so much space and can't keep everything.
There are also times where you have to jack into cyberspace to unlock certain areas that are otherwise inaccessible, and that can be trippy. It's light years ahead of what the original SS had, and maneuvering in cyberspace feels much like playing the old Descent from Interplay; it can be very disorienting.