Just found an item called Fake Space Staff. Its description reads "This is a special replica of the Space Staff!" However there's no item with the name "Space Staff".

Whats up with that?

That item is very, very old. Early items had a lot of weird jokes, in jokes, false claims that they would hurt your pet, and a lot of stuff like that. So, my guess its either an in joke, or maybe an oblique reference to media (maybe Skeletor Havoc Staff, for example).

It hasn't aged well because now we have so many items that a "space staff" could have been onsite, changed, renamed, etc so it isn't as obviously a joke.

Thanks!! I did think maybe it had been renamed. Gosh I forget how weird some things used to be

The real one is called Space Scepter