Large asteroid fields contain large nugget deposits of ore. Medium asteroid fields contain medium sized nuggets of ore. Small asteroid fields contain small nuggets of ore. When the usable ore is taken away by the Harvesters, Siphons, or Galiots, there is unusable asteroids left floating around. When ships enter asteroid fields, ships will reduce their speed.
Wormholes are junctions and are the only natural thing that let ships get between systems or maps.
Each race requires some quantity of each resource to constuct their desired vehicles, however, unlike in most RTS games, each race in Conquest has a preference for a particular resource, as detailed above. This lends itself to a very strategic game where strikes are made against a certain resource type to cause maximum damage. Salvage from destroyed ships can also provide ore as well. Gas - Gas can be collected from Earth and Gas type worlds, but can also be harvested from a Ionic, Helios, Cygnus, Lithium, or Celsius nebula. Crew - Crew is gathered only from Swamp and Earth type worlds.