Well heck, we can dream a little right?
http://www.technifex.com/product/4d-theatre

I think dream is the operative word here, you can just imagine a dark room and suddenly water is dripping on your head !

Disney World uses this tech.
It's been several years, but I still remember feeling the hot, humid breath of an alien monster on the back of my neck.

Yes Disney has one called Bugs Life and it's awesome. Amazing, one day....

Alien Encounter at WDW. Too scary for the Mouse. Replaced with 'Stitch'.

https://m.youtube.com/watch?v=P2XkRn_pAQI&autoplay=1

"Tough to be a Bug" at DCA is brilliant. A must. Many lessons from our craft in play.

Loved Alien Encounter for its short run. It was definitely too intense for little kids -- but I liked that Disney took the chance. As I recall, seated in the dark with this alien lurking around, and after feeling its hot breath on one's shoulder or face, there was a point when the Alien "killed" a hapless researcher (again in the dark) and as the killing occurred you felt warm droplets hit your face...a wonderfully terrifying gore fest in the dark! Definitely not The Mouse's usual offering!

Hmmmm...just watched/listened to the video and didn't catch where anyone was "killed"...perhaps I have much more traumatized memories of the attraction versus what really occurred!

In Madrid they have an amusement park and in the park they have a simulator ride. My lads convinced me I would enjoy it so I went along with them. Inside are about 30 seats on a small platform. You are told that you are trapped inside a giant pinball machine.
The ride starts and you are bounced off the various bumpers, you think its real. You fly off the bumpers and then dissapear into a hole , the sensation of falling is very realistic. At various times you get blasted with hot air or a fine mist in your face. The most amazing thing about this ride is when its over you are told that the platform never moves more than 9 inches.
The feeling of dropping into the hole was so realistic. If you are ever in Madrid you must give it a go.

Ah-ha! Tricked by the Mind, Betrayed by Memory. This is an important point with our brand of storytelling, no? Give the audience enough rope to step in loop holes and tie their own noose and with the proper atmosphere, they will.