Old shit: (I don't know if anyone would be reading this (A.I. War is rather obscure), but if you have bought the Humble Bundle package for Arcen Games' A.I. War, your purchase have been recently upgraded to lump all of the A.I. War titles together, including the most recent expansion "Destroyer of Worlds" (which was not included in the original Humble Bundle package).
That is splendid value-adding, in my opinion.)
Really, I was too quick to jump to conclusions. The most recent expansion was not included in the package. Rather, the package has been renamed as "AI War Collection (2013)", to denote the time before the release of Destroyer of Worlds.