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