Resources

Resources are a consideration that will likely come into the game beginning at the Tribal Phase. It is a broad term that can mean many things, but the common link between them is that they are something you generally don't want to run out of. Resources are things your creatures either want or need, so thusly they are linked to your creatures's well-being and general happiness, if not their lives in general. Resources will likely differ between phases, both in importance and type. For instance, luxury goods may appear in the City Phase or Civilisation Phase, but will not be absolutley neccecary to your creatures.

=Tribal Phase Resources= The central resource for the Tribal phase will likely be food; either meat, plants, or both if your creatures are omnivorous. This will be gained through foraging or hunting, or possibly basic Agriculture such as herding livestock. Aside from this, there are no other resources known as of yet within the Tribal Phase.

=City Phase Resources= Again, food will play it's role, possibly adding farms or orchards to the methods of gaining food. Money is a known resource that will likely begin in this phase, and carry through all the way to the Spacefaring Phase. Hypothetically, building materials may play a role in the city phase, for constructing new structures; metal, stone and wood are three that come to mind.

=Civilisation Phase Resources= Given it's similarity to the City Phase, it is unlikely any new resources will come into play here. Vehicle-related resources such as fuel may play a part, but otherwise the same resources from the City Phase will still be required. Note that money is still an important factor for attaining new technologies, and eventually creating a UFO, putting you into the Spacefaring Phase.

=Spacefaring Phase Resources= Money is known to still be important here, for adding new technologies to your UFO. Anything you can beam into your cargo bay could be considered a resource technically, depending on how you intend to use it. Data from scanning various things you find could also be considered a resource.