As of 4:38PM GMT +10:30 the Easter egg was found!
Late last night I pushed an update to the Steam demo, it contained some performance fixes etc but it also has a small little Easter egg embedded in a certain section of the station.
Be sure to be up to date on Steam and the first person to email me with an image of the Easter egg will win a pre-order for Caffeine!
Send images to: [email protected]
*first come first serve*