I have been mobbed before on this forum but I will hazard again.
Civ IV Planetfall doesn't have a treasury credit limit of 5,000 so will some one please tell me how I can increase the treasury limit on Star Trek. It can't difficult, even for some one like me.
I will ask my question differently this time: have you let your treasury trip 5000 without using worldbuilder at all? I'm in the mid-late game, and my treasury is over 2,500 as it is, and that's without worldbuilder or even chasing gold, so I imagine if I actively tried to raise my income, by mid game I could hit easily hit 5,000+.
Without buying ships or buildings, there really isn't much money is used for... I guess diplomacy, but most other civs are so polarized at that point in the game that no amount of gold will sway them for more than a few turns, so I'd rather not even waste the effort.