Metal is the principal resource required for conducting research and constructing buildings, ships, and defensive units. However, there are exceptions, such as Solar Satellites, Espionage Probes, Energy Technology, Hyperspace Technology, Computer Technology, and Graviton Technology, which do not rely on metal.

If you haven't constructed a Metal Mine yet, your base production will be 30 units of metal per hour in normal universes. In speed universes, this base amount is increased, scaling with the speed factor of the universe.

Metal serves as the foundation for most of your empire's advancements and is essential for growth and development. A well-developed Metal Mine ensures a steady supply of this crucial resource.

- Normal Universes: 30 metal units per hour without a Metal Mine. - Speed Universes: Higher base production, varies with the universe's speed factor.