Valve has updated the Steamworks SDK to version 1.9 and so AIrship Dragoon has been updated.

Included in this update is the total removal of all pre-runtime compiled *.dso files, which have been replaced with the human readable *.cs code script files.

This will aid anyone who fancies a bit of user generated content - or modding as we used to call it in the good old days, though having a look at the Steamworks page on setting up Steam Workshop ... turns out it's a bit more complicated than just pointing Steam towards the mod folder. ːnotsohappychappyː
However that mod folder already has the "Realism Mod" in it, just to prove that modding has always worked.

Airship Dragoon has been on Steam for 9.5 years now. ːcorblimeyguvnorː