Orion's Guardian is a ship type in Master of Orion.
A mighty unmanned ship that protects Orion.
By far the single most dangerous ship in the galaxy, the Guardian is equivalent to a Doom Star in terms of resilience and firepower, but about three times faster and nimbler (equivalent to a Titan-class warship).
Confronting the Guardian requires a large numerical advantage, as much due to its durability as to its firepower. Luckily, the AI governing the Guardian generally focuses on destroying a single target, preventing its guns from firing on multiple targets and slaughtering attacking fleets.