Go for Imperium Galactica II. I've had the game for little over a week now, and I've already lost countless hours of sleep - barely managing to go to work, and keeping up with my social duties (which mainly involve keeping my wife happy
)
Don't buy it unless you have a large system though. These are the minimum specs, if you want a smooth running game:
P(whatever)-450
128 megs of RAM
Some kind of 3D accelerator graphics card, with no less than 16 megs of RAM (3D accelerator is a must, you can't play the game unless you have that)
And off course a large HD, but almost everybody has that nowadays anyway.
Asmodean
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I used up all my sick days, so I'm calling in dead