[Ragnarok]

I think it would be interesting and fun. But how would you ever win? You can't ram planets right? If that is the case then you would never wipe out planets. Unless you just start with like a few homeworlds (3) and then just used them to support your empire. But that would be tough to pull off since you'd be building alot of ships and be running your bank account into the ground. If there are ways around this, then it would be neat to see this go through.
Perhaps you could mod the home planets to all have monoliths and generate tons of resources per turn. Dunno, just some things to think about I guess.