Here is the full list of all 51 Salvation Prophecy achievements.
Deliver the final damage which destroys a battleship.
As faction commander, make peace with another faction.
Seek out the Rune of Celestial Oblivion.
Travel to 10 different planets.
Complete missions to obtain military rank 8, faction commander.
Destroy enough fighter ships to achieve a colossal reputation.
Complete a bounty mission against the pirate named Cranium Eterneon.
Complete a bounty mission against the pirate named Fisheye Grim.
Destroy enough fighter ships to achieve an infamous reputation.
Complete a bounty mission against the pirate named Malice Blackhand.
Deliver the killing blow to a mech.
Complete missions to obtain military rank 7.
Seek out the Rune of Summoning.
Destroy enough fighter ships to achieve a lethal reputation.
Destroy enough fighter ships to achieve a feared reputation.
Complete missions to obtain military rank 6.
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 5.
Seek out the Rune of the Continuum.
Successfully navigate through an unstable wormhole.
Deliver the final damage which destroys a space station.
Destroy enough fighter ships to achieve a sturdy reputation.
Destroy enough fighter ships to achieve a capable reputation.
Complete a bounty mission against the pirate named Little Jack.
Complete missions to obtain military rank 4.
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.
Consume 100 stims across all your battles.
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 Narcisus Humungous.
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 Kelmar the Twitch.
Colonize 5 planets as faction commander.
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.
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.