My problem is just the arbitrary limit. "You can only build, let say, 4 super weapons! Yeah, I've always like the number 4." That's an easy fix but a better fix would be to mix in some other game mechanic when determining the cap.
What next? We can only build 11 trade stations? Or how about we can't build titans during the first 26 minutes and 18 seconds?
A few ideas:
- Make super weapons cost supply or command points or both.
- Cap super weapons based on the number of planets you control.
- Make it so two super weapons can't be built on adjacent worlds, so you have to spread them out a little. It also requires some thought to find the optimal layout among your planets.