This is old but thought I'd bump it, Sacrifice is one of my favorite games. Played the whole thing through 3 or 4 times. The last level is actually somewhat easy once you know what to do. The key is to play very defensively in the beginning. Keep all your guys guardianed right at your shrine or whatever (been a couple years) and go without them to harass Marduke then run back once he comes to attack again. Do this until you have a huge army. Then of course, make sure to take out all his monoliths before taking out the big thing in the center.
Awhile ago I heard they were making a sacrifice 2, anyone know anything about that? I can't find anything about it so it looks like it was scrapped.