I am not sure it would make sense as a building. Buildings and cities already have infinite resources, so they also have infinite energy.
I once suggested a food synthesizer, a belt utility item that uses gigacells to make food or simply refill your hunger bar directly.
A type of "replicator" could also be implemented for spacecraft, a way to make basic tools and spare parts at the cost of the limited energy/fuel the spacecraft has.
I once suggested a food synthesizer, a belt utility item that uses gigacells to make food or simply refill your hunger bar directly.
A type of "replicator" could also be implemented for spacecraft, a way to make basic tools and spare parts at the cost of the limited energy/fuel the spacecraft has.