MediaX, a video game studio from the 90s, worked on a never-published 1984-themed video game called Big Brother.
The game was cancelled in 1999, and as reported by Polygon, it was due to the company losing the license of 1984.
Now, almost 25 years later, the game has resurfaced and you can download it from the Web Archives here.
According to an interview from 1999, the game is in a first-person perspective. The story continues after the events of the 1984 book, with the main character Eric Blair going on virtual adventures somewhere in a European city.
Image by: https://lostmediawiki.com/