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