Wasteland came out a year before Morrowind.
Thats 7! years before Fallout3.

Fallout1+2 did give ispiration of course,
but also games like Patrician 2, Earth 2150, Gothic 1, Planescape: Torment and
Jagged Alliance 2.

The setting is more that of MadMax2,3 and Waterworld.

(Originally I was playing around with
an Economy simulation. And a Post-Apocalyptic society is
perfect for a bartering-trade scenario)

And its true: there are hundreds of Medival - Fantasy and
Scifi Shooter games, without comparing them constantly
to Tolkien, Jules Verne and Roddenberry.

The Post-Apocalyptic setting is a nice general plot
for Civilization (forced) to have a new start.
And how that would look if some form of our modern technology
and rotten items are used by a society witch lost a lot of its moral civil
archivements.