Well, I know that die-hard 7K fans prefer to ignore the third game in the serie but I happened to get it DRM-free on GamersGate recently, and I like it.
Yes, it has little common with 7KAA and 7K2 but it has its charm when you consider it like a separate single game. It has many great ideas and concepts though it fails to complete many of them. This game seems to be thrown away and forgotten by its developers (Enlight and Infinite Interactive, the latter are creators of Warlords Battlecry serie) as soon it had been released, and you can't even find any info about it on Enlight and I2 sites.
It's a real pity, because a couple of patches could make this game shine.