[SammoJ]

Were they playing anything or just walking around in the demo? I have one and have tested it out with many people. When people get sick it's usually because they've been in one of the less interactive demos just sort of looking around wiggling the mouse etc. The people who I let loose straight onto Half-Life 2 or other games where there is some sort of goal rarely get the same type of nausea. I think this is worth taking into account when people say "it's nausea inducing".

For insta-nausea put someone in the Tuscany demo and move them around while they wear the rift. Hilarity ensues!

[adamesque]

We did one demo that was more or less floating above static terrain, and another with Half-Life 2.

My own nausea didn't actually start up until HL2. We were playing on a laptop (probably not enough horsepower), using slightly unfamiliar keyboard & mouse controls. So some movements were very fluid & second-nature to me, while others were jerky and off because of the slightly-off control scheme.

It's possible the most nauseating moment was taking the headset off, actually. Up to that point, my mouse hand had been a pretty accurate proxy for my in-game hand and arm, but taking my hand off the mouse and then ripping the "world" away with that same (now "phantom") hand was deeply disconcerting.

But it's also possible the nausea built up slowly over the course of playing. I'd love to spend more time with it to see if it's something you really can adjust to.

[TillE]

On the subject of movement while wearing a VR headset, it seems to me that most successful games will be those where your character remains seated. Flight simulators, space combat sims, mech games, stuff like that.

For that kind of game, just the Rift and a joystick should provide an amazing experience.

[Drexl]

This is where the Omni or a product like it in the future comes into play.