[pfortuny]

Also: you cannot pretend to be "physically realistic" on a computer screen. The simplest thing: if there is more ambient light, your pupils decrease and your sight is different. You cannot simulate "true light" unless you also simulate that.

[account42]

Yeah some games are practically unplayable if you don't completely darken your room and even then contrast depends so much on the display tech of your monitor.

[philipallstar]

Splinter Cell was good here because you could make enemies visible and you not visible by virtue of the fact your character was wearing night vision goggles.