These are the units of the orcs in Warcraft 1: Orcs and Humans.
Peon
Cost: 400 Gold
Attacks/Magic? No, No
Requirements: Town Hall
Peons are the workers in the orcish clans, harvesting lumber and gold and building amazing structures. However, they are defenseless, fleeing like children if attacked by humans.
Grunt
Cost: 400 Gold
Attacks/Magic? Yes, No
Requirements: Barracks
Grunts are the most basic units, protecting peons from the merciless humans. They wield axes and wear armor, perfect for an orcish warrior.
Spearmen
Cost: 450 Gold, 50 Lumber
Attacks/Magic? Yes, No
Requirements: Barracks, Lumber Mill
Spearmen are the ranged units of the society, throwing spears at the enemies. However, they wear no armor, making them invulnerable.
Necrolytes
Cost: 700 Gold
Attacks/Magic? Yes, Yes
Requirements: Temple
Necrolytes are the dark magics of the orcish horde. They cast dark magic, such as raising the undead and casting dark visions. They are weak in amor, however.
Raider
Cost: 850 Gold
Attacks/Magic? Yes, No
Requirements: Barracks, Kennel, Blacksmith
Raiders are dangerous wolf riders, riding at great speeds that they put fear into enemies. They ride the bloodthirsty wolves into battle, placing opponents into disarray.
Catapult
Cost: 900 Gold, 200 Lumber
Attacks/Magic? Yes, No
Requirements: Barracks, Lumber Mill, Blacksmith
Catapults fire balls of death and fire, smashing the opponents apart and in disarray. Their balls of fire will smash anything apart, friend or foe.
Warlock
Cost: 900 Gold
Attacks/Magic? Yes, Yes
Requirements: Tower
Warlocks are the darkest magic casters of the Orcish Horde, casting evil spells like daemon summoning, and summoning death clouds.