Heh, Googled it and found that there's a "Play in your browser link" @myabandonware.com/ & might as well check it out.. http://www.myabandonware.com/game/x-com-ufo-defense-1pl
Difficult to say .. 3d is kind of strange because once you've faced another direction, you can't tell any more where your towns are, etc. .. then, it's made 'childish' .. animations are not scripted and what you do in the game has no effect on those sequences .. the campaign is too easy and extremely difficult to finish depending on the map (which seems to follow HoMM4) .. anyway this is what I see: $29.95 Note: This expansion requires the original game to play. 1.67 GB That does-not-make-sense .. did they leave out features from the original so they can charge so much for the expansion?.. (what's with that file size) .. my rant is because HoMM5 should've been better then it turned out & it DID come out awesome, but I doubt that after so much work they're going to improve fundamental stuff that isn't there .. even if 6 ever came out ..