I played this game the other day and I also started to feel sick and also started to get a headache from the moment I started playing it. At first I thought it might be because I was tired. But Thursday my friend came around and decided to play it. He started playing and guess what, he started to feel sick, and I also started to get a headache.
I was on bungie.net when I saw info about Marathon and it made me wonder if anyone else had the same problem, looks like some do.
By the way I have been playing all sorts of games all my life, normally for long periods of time and I have never once felt ill while playing a game except for if I have a Migraine. When my friend played this game I never mentioned that this game made me ill, so it's not in our heads. There does seem to be something wrong with this game.
I would like to add I am only 19, so its not only older people, I have a SD TV so its not only HD TV's and I live in the UK so its not only the American frequencies.
I really don't know what the problem with this game is as most games are now 60hz only and they don't make me feel sick. It is almost like there is something on the screen that we can't see like a subliminal message sort of thing (I am not accusing anyone about a subliminal message but I am trying to explain what I mean).
I haven’t tried the camera bob and sensitivity yet so I will have to try that to see what effect it has.