I have played a lot of RTS games in my time, and this is surely right up there with the likes of Starcraft 1 and Red Alert, only it is still a bit better. It trumps all RTS's from the same era, and it is better than quite a few modern ones as well. The AI is good, unit movement is much more realistic than most RTS's. Units actually have turning circles and turning speeds. You have radar and jamming, unit queuing and both air,ground & naval units. And so much more... The graphics have aged a bit by now, true, but they are still amazing if you consider when this game was released. If you played Supreme Commander and loved it, I can assure you that you WILL love Total Annihilation.