I remember that game - cool mix of 4x and rts. You need to constantly research sth to be fast enough for opponent. Also skirmishes were hard after first few. Economy was another important thing – for martians it was based on human blood. Well it was hard and at some points really screw up – some of technology was unbalanced, some of the units were useless etc. Still cool atmosphere – WotW is one of my favorite story :D