FPS games making you nauseous?

[Mclyle_]

I think the problem with environmental puzzle games like Portal 2 and HL2 is that you get really sick very quickly because you are overexerting your brain trying to solve a puzzle you just can't figure out PLUS the added effect of simulator sickness. In my case wracking my brain plus motion sickness made it even worse.

Strangely enough I didn't get sick at all while playing Portal 2. It's such a strange unpredictable stupid problem to have.

[Donisia]

I've had someone get sick while playing a game with en because of lag...