This is only a recent phenomenon for me. I played Assassin's Creed about a year ago, and more recently Saints Row IV. Both games have a tower climbing gameplay segment and both have for some reason really thrown my senses off. I find myself dizzy and my heart sometimes racing when attempting some of these sections. I used to be a rollercoaster/thrill ride nut, so it really surprises me that a virtual environment is actually affecting me.

Anyone else out there with a similar experience?

No .

Nope. It's not the same as heights in real life.

on occasion - usually as a result of some depth of field or motion blur effect I cant turn off though.

Nope

Not heights, but I've gotten disoriented, flinched, jumped back from boulders/cars/traps in game, and (especially with Tomb Raider) I've found myself craning my neck when Lara is looking around a corner.

I remember exactly one scene in a game that did that to me and that was the elevator ride in Fighting Force. Back then I played the Dreamcast version, though, the effect may have been even stronger there.

I used to tease my friends and family who would tilt their head in racing games and such (like Mario Kart on SNES) while steering, but as games have become more realistic, I find myself doing the same thing now. Especially my flight/space sims.

I've never been affected by heights specifically though.

No, but in real life they are no picnic.

Who wouldn't dance across a 100 cm wide bridge, 100 cm from the ground?

Put that shit at 500 m, and my steps would be decisively more measured.

Hated jumping, parachute, but sometimes you just have to say, f it, and go ahead.

Games, no need to fear, not real.

No but maybe a vr helmet would make me.

Play some Mirror's Edge. :o

Scared of heights,but no effect seeing it in games or videos.
Do remember playing some games and sneaking around in a dungeon,hearing strange noises.
Stepping around the corner and some skeleton standing there,screaming...Soiled the undies that day:-)
Old M&M game..

Like others, I also get disorientated easily and I sometimes twitch. My favourite is leaning my head over to look around a corner on a 2D screen.

Have you recently changed to a larger monitor? If not, you may want to consider either moving away from the screen or buying a smaller monitor.

Please be careful as the symptoms you've described are worth taking seriously. All the best.

Yes, sometimes. Notably, had it playing Gothic 2. I'm chalking it up to my real-life 2D vision, so seeing this stuff on screen isn't much different from what I see in the world and thus it sparks a similar visceral reaction. Not that I have any particular fear of heights, mind you, but there's sometimes this quick moment when first encountering such a situation - and that's what I will get in games, too.

Unless I really focus myself, I get dizzy from heights in real life. I guess its like a mild vertigo.

But I do remember just a couple of years ago here on GOG, I had asked for recommendations on rpg's with turn-based combat. I can't remember what the game was, but it had a fixed overhead view that was at a particular angle, and I think I remember that the objects were layered graphically so that tall trees (for instance) would move at a different pace from the character(s) on the ground....and for whatever reason, that triggered my dizziness to the point I couldn't go on watching the gameplay video. No amount of focus on my part was able to counter it.