Aside from the main factions, there are other lifeforms, and intractable objects scattered across the world of Terra. Some of these are very valuable for the player. As a general rule these are randomly scattered throughout the stage on each play through (there are some exceptions) so the levels is never the same twice. So go explore!
Usually lives in mountainous or desert regions. Primals have a primitive society that relies on stone tools. They are quite strong and very territorial. They will attack any Devourer and Valkyre that they spot. They have been known to occasionally capture lone Valkyries and imprison them back at their camps for food.
Older, wiser, stronger and leader of the primal tribes.
Valkyre workers captured by Primals. Attack these to break them out of their prisons. (get a free worker unit) Subject to being a free meal for the Devourers. Expect there to be some Primals guarding them, but you may be lucky and arrive while they are out to hunt.
You will find these scattered across all maps. Attack them to break them open. Chests may contain crystals or ore, or free experience points to the attacking unit.
Lives in or near large bodies of water. can be found as an individual or in large schools. Harmless to Valkyries, will attempt to flee if anything comes close.
Harmless grass feeder. Usually found in small heards in grasslands or forest biomes. Will attempt to flee if anything comes close.
You will find these scattered across all maps. Emits an energy that greatly restores HP of any unit that is close. Its a good idea to take note of their locations as they are vital points to stage an attack from or retreat to. Can also be destroyed for extra crystal resources.
You will find these scattered across all maps. Emits crystal energy that greatly restores EP and greatly increases unit production (for production facilities). Can also be destroyed for extra crystal resources.
On certain stages Cannon Devourers may be randomly placed on loading.
Description from Devourer list:
"Turret" devourer. Launches "Bomber" devourers at long distance. Bombers explode on impact causing massive damage, especially to vehicles. Can attack air units.
Break open (by attacking) to get free unit upgrades, or a special Valkyre Structure.