[Nate]

but it was so popular!

No it wasn't.

And they've made sequels for every other game

No they haven't.

then why not make this?

Because SW didn't sell well at all.

Why didn't they ever make that one 'slig storm'?

Slig Storm was meant to be released with a box set of both AO and AE together. The box set never happened, so Slig Storm never happened.

and that other one about the guy who had rabies?

http://oddworldlibrary.net/oddblog/s...s_and_Stranger