MOO2 is hands down one of the best strategy games I've ever played My main criticism is that it really needs a Civilization style planetary build queue. As you get to end-game, particularly if you're trying for max points, managing the build queue for all your planets becomes a major time sink. One problem I've noticed with the MacOS version is that, it's very processor intensive, causing the fan on my MBAir to run at 100%, which drains the battery. The original Mac version ran well on much older macs, even under Classic mode, so it's likely due to the use of Crossover... oh well, at least it runs.