Ancient Guardians are hostile mobs that patrol the facility that encompasses the Ancient Machine. The guardians will attack on sight, and fire blue lasers. They tend to stay at a distance from the player, and attempt to flee if the player is too close. Due to this, melee combat can become tricky as the guardians will quickly dodge out of the range of sword-wielding players. Guardians can also block occasionally, negating the player's damage. When defeated, Ancient Guardians drop diodes.