Total Annihilation

Description
It is 4000 years in the future, and the epic battle between the Arm and the Core has devastated the galaxy. Both sides fight on with super-advanced technology, from plasma guns to giant robots to sonar jammers. The only acceptable outcome is total victory.
As the Commander of either Arm or Core, the player must build up a base to destroy the other side. Unlike earlier titles in the genre, it uses a 3D world in which elevation changes have an effect. All sides start out with the Commander, the game's most powerful unit capable of both construction and combat, and must defend it at all costs. Resource collection is based on securing metal nodes and gathering power from any free location on the map. Purchasing units and structures of higher tiers requires different construction units and factories, rather than relying on tech structures in other titles in the genre.