Here is the full list of all 51 Salvation Prophecy achievements.
As faction commander, make peace with another faction.
Utterly destroy the Salvation faction.
Seek out the Rune of the Sun
Destroy enough fighter ships to achieve a legendary reputation.
Utterly destroy the Drone Unity faction.
Destroy enough fighter ships to achieve a colossal reputation.
Construct 5 new battleships as faction commander.
Construct 5 new space stations as faction commander.
Destroy enough fighter ships to achieve an infamous reputation.
Colonize 5 planets as faction commander.
Destroy enough fighter ships to achieve a lethal reputation.
Complete a bounty mission against the pirate named Shred Necrotitis.
Deliver the final damage which destroys a battleship.
Seek out the Rune of Celestial Oblivion.
Travel to 10 different planets.
Deliver the killing blow to a mech.
Complete missions to obtain military rank 8, faction commander.
Complete a bounty mission against the pirate named Shibby Wag.
Destroy enough fighter ships to achieve a feared reputation.
Complete missions to obtain military rank 7.
Seek out the Rune of Summoning.
Destroy enough fighter ships to achieve a dangerous reputation.
Complete a bounty mission against the pirate named Deadman Fallen.
Complete a bounty mission against the pirate named The Reaver.
Destroy enough fighter ships to achieve a sturdy reputation.
Complete a bounty mission against the pirate named Little Jack.
Complete a bounty mission against the pirate named Malice Blackhand.
Complete missions to obtain military rank 6.
Destroy enough fighter ships to achieve a capable reputation.
Complete a bounty mission against the pirate named Narcisus Humungous.
Destroy enough fighter ships to achieve a recognized reputation.
Complete missions to obtain military rank 5.
Seek out the Rune of the Continuum.
Successfully navigate through an unstable wormhole.
Complete missions to obtain military rank 4.
Complete missions to obtain military rank 3.
Deliver the final damage which destroys a space station.
Successfully navigate through a wormhole.
Successfully navigate through jump space.
Complete missions to obtain military rank 2.
Consume 100 stims across all your battles.
Seek out the Rune of the Void.
Complete a bounty mission against the pirate named Cranium Eterneon.
Complete a bounty mission against the pirate named Kelmar the Twitch.
Complete a bounty mission against the pirate named Fisheye Grim.
Utterly destroy the Free Nations faction.
Utterly destroy the Wyr faction.
Defend a colony against an alien attack.
Destroy the alien mother ship.
Walk the path of the sun to the alien homeworld.
Walk the path of the void to the alien homeworld.