This may have been discussed already, but after playing some games as Unhallowed and actually surviving until later, I realized that after I build all of the tech I want, the only "end-state" option for an Unhallowed city is "Housing". However, if I hit the pop cap, then the city is basically doing nothing for me. Is this supposed to be a distinct disadvantage for Unhallowed cities? I know they can't trade goods for Gold, and using a trade goods for Negative Energy feels imbalanced since that's also their unit food mechanic.
I was thinking that perhaps an Unhallowed city could turn production into Mana per turn instead. That would feel (to me, anyway) in line with the generally magical nature of the race, and it would give you some benefit for a "completed" city in the sense that you could then summon more units or reallocate some power, etc.
I don't know if this is a completely imbalanced idea because spells are generally really good, but I can't help but feel like they should be able to turn production into SOMEthing. Technically you can just assign all of your workers back to "farmers" or researchers, but I suppose it still just feels like the city isn't doing anything productive in its end-state.
Has this already been hashed out? What do other people think?