Fallout
A setting like Cyberpunk 2077 can only get this RP so far back. While vehicles made for the streets of Night City resemble counterparts made for 80 years prior in real life, that only seems to go back as far as the 1960s.
Enter Fallout. Fortunately, there is no chance of a nuclear war in the Glitch Techs x RP. The bad news is, that's because it happened another way.
The setting of ''Fallout''
Devices like the Pip-Boy 3000 were built to resemble 1970s and 1980s computers in a "portable" format, but the vast majority of tech in Fallout is based on 1950s retrofuturism.
The biggest part of this is obsolete vehicles. You know how if you go for a long drive, you're bound to come across at least one rusty old shell of a car from the 1940s or 1950s? You know how the years have not been kind to the remains of automobiles in Fallout's setting? Yup. Rusty Corvegas are the new "I'm a trashy white person" (no offense to anyone who likes collecting and displaying them or judgement on your perceived whiteness, I spent way too much on toy cars for the same reason, lol) and so ...
Fallout in Glitch Techs x RP
The original megacorps were Poseidon Energy (ArAmCo but more evil and still active), RobCo. (whose only surviving subsidiary is RSI), Vault-Tec (which was merged into Hinobi in the 2000s), the Nuka-Cola Corporation (known for using pro-nuclear-weapon propaganda in the 1950s), and Corvega Motors (not evil, but no longer in business).
Nuka-World is a theme park on the outskirts of Boston which is only open in the summer due to the cold winters of the state. It is generally considered a "poor kid's version" of Bendyland, which itself is considered the "middle-class kid's version" of the Sidney "Castillo" parks.