One of the things that most add tension to a video game is the spacing of save points- of save points are spaced apart pretty far from each other, then each death will cost you a lot, meaning there are higher stakes involved. This is the principle that Bloodborne and Dark Souls used to great effect, and it is something that Resident Evil used to do a lot of, too.
Another video shows off some more gameplay, including an attempt to open up a chest with a knife. For some reason, this video is putting me on edge and making me really tense.
Resident Evil 7 is due out in January on Xbox One, PS4, and PC.