This was a movie that I REALLY enjoyed. Sadly, though this is not a playable demo of any type, but more a video trailer….
The company has described Open as “the first genre-defining AAA metaverse gaming experience, interoperable with top-tier IP through web3 tech. A multi-biome, multi-IP, multi-mode battle royale experience, in development for PC and next gen platforms, will set the stage for the future of gaming.”
“Open will probably be a game that you can play on both your computer and with a fancy AR/VR headset. The “multi-IP” part refers to the fact that soon other franchises will be integrating their own characters into the gameplay”.
So yes, for it to be anything like the movie, it will need AR/VR headset type functionality. At the end of the linked article is a link to sign up on the wait list, so long.
See https://gizmodo.com/ready-player-one-ernst-cline-readyverse-studios-open-ga-1851326285