I've always felt DX was an ironically realistic vision of 2052 when you consider what the average person would be able to see.
Sure, the protagonist sees hidden bunkers with weird science, but the average person? It's hard find work, their votes don't seem to matter, there's no real privacy anymore, and nobody will honor the warranty on the little floor-cleaner robot.
TBH things like EFF and such were a reality, and the devs for sure they were aware, as they knew geeky/nerdy games like Nethack too; and deducing knowledge about free software and digital rights it's trivial.
Also, Deus Ex and the Unreal Engine had a GL renderer with worked amazingly great with Wine back in the day, it was one of the best games to run in early 00's. Yeah, the game was propietary and yadda, yadda; but there's the Surreal engine (libre implementation of Unreal1) on the works.
Another game on dystopias which looks parodical but it's heavily reality grounded it's Liberal Crime Squad. As an European I know near nil about the USA goverment branches and how the goverment it's built, but that game taught me the process exceptionally well. And, yes, it's a must play giving how current politics are going:
Sure, the protagonist sees hidden bunkers with weird science, but the average person? It's hard find work, their votes don't seem to matter, there's no real privacy anymore, and nobody will honor the warranty on the little floor-cleaner robot.