Forgotten scifi - space station with artificial world,

[Juvi]

Hi sorry trying to remember a book I read in the 90's but think was older - set on a space station/artificial world set in orbit I think above Earth. The world might have been cylindrical I remember a point where the main character looks up and can see trees and lakes above him. (?Oneill cylinder). I think t main character was named Adam, he's only known life on this station and is close to the commander of the station. The station is attacked by some terrorists from Earth. He manages to escape and travels to Earth, where he finds it isn't what he has been told it is. He has an implant in his brain and a microchip or something on his vocal chords which allows him to communicate with the computer which is based on the space station/base. He goes back to save the base and finds out he was a clone/son of the commander.
Well that's what I can roughly remember of it, read it about 20 years ago I think, but would like to find it again. Thanks for any help.

[Nokomis.FL]

Almost sounds like Imperial Earth by Arthur C. Clarke, but with differences from your description.

https://en.wikipedia.org/wiki/Imperia...

[Roberta]

Sounds like one of the Rama books (Clarke), or one of the Long Sun or Long Earth books by Wolfe - I think it's more likely from the Long Earth, but I don't remember it too well. After Clarke's Rama was published there have been many other books with a similar setting.

[Juvi]

Thanks wasn't either of those, initially might have been Rama or A.C.Clarke, but think the style was different, and had a look the plots of the one's you've mentioned so far. Think it was a one off book not a series, and ends with the main character taking over the running of the station. Hopefully someone else comes up with an idea.