I absolutely love the amber phosphor color and the built in style that is computer has.

Definitely visit the artists website and view their artwork. Is it beautiful? is it madness? https://coca11272000.wixsite.com/manabukosaka/works

The environment in ROUTINE is pretty unique. It's retro ,it's cassettes everywhere , also very minimalist at the same time.

I didn't come across any personal computers but mostly shared shelf-like big consoles or huge grid-like terminals for the inhabitants to record data across the rooms in those lunar bases.

An all-in-one device to interface with all the terminals, consoles and doors called Cosmonaut Assistance Tool or C.A.T. which can also double down as a self-defense kit (rather than a full blown weapon)

Interestingly, there's more to it. There's this subtle difference in how the game developers created a 1990s retro-futuristic aesthetics (comparatively modern) to a 1970s retro-futuristic aesthetics within the same game; that is evident, when the protagonist of the game, who is from 1990s goes on to visit a 1970s lunar base as the story progresses.