Population modifier idea -- penalty for low population

[Baron Munchausen]

A simpler solution is to just reduce the basic planetary spaceyard rate. It's in the SETTINGS.TXT file. There are three seperate settings for a planet just as for a component spaceyard.

Empire Base Planet Mineral Usage Rate := 2000
Empire Base Planet Organic Usage Rate := 2000
Empire Base Planet Radioactive Usage Rate := 2000

Just set these to 1000 and then adjust your bonuses accordingly. Just be aware that this will have a SERIOUS affect on the construction of new spaceyards -- the default build time would go from 5 turns to 10 - and htis might hurt the AI considrably if it is not smart enough to dump extra population on new colonies very quickly.