Ziost is the third and final planet released with the 3.0 Shadow of Revan update. There are 430 legacy points spread between 29 achievements in 3 subsections. Most of these achievements are relatively easy to unlock.
5 Legacy Points | 5 Legacy Points | 5 Legacy Points | 5 Legacy Points | 5 Legacy Points
These achievements are unlocked for killing the 5 Aegis Squadron walkers on the story version of Ziost.
Aegis Squadron ZX-1 wanders around the Landing Zone
Aegis Squadron ZX-2 wanders around the Military Outpost
Aegis Squadron ZX-3 wanders around the Military Outpost
Aegis Squadron ZX-4 wanders around the Military Outpost
Aegis Squadron ZX-5 wanders around the Central District
The enemies needed needed to complete these are;
Aegis Squadron ZX-1 | Aegis Squadron ZX-2 | Aegis Squadron ZX-3 | Aegis Squadron ZX-4 | Aegis Squadron ZX-5
50 Legacy Points | Grants Legacy Title: Aegis of Ziost on completion
This achievement is unlocked for completing all 5 walker achievements on the story version of Ziost. The achievements needed to complete this are;
Defeat Aegis Squadron ZX-1 | Defeat Aegis Squadron ZX-2 | Defeat Aegis Squadron ZX-3 | Defeat Aegis Squadron ZX-4
Defeat Aegis Squadron ZX-5
10 Legacy Points
This is a hidden achievement
This achievement is unlocked for killing Grundorsen Maelo on the story version of Ziost. Grundorsen can only accessible by completing "On the House" bonus mission during "Dead Center" mission. The enemy needed needed to complete this is;
Grundorsen Maelo
5 Legacy Points | 5 Legacy Points | 5 Legacy Points | 5 Legacy Points
These are hidden achievements
These achievements are unlocked for killing the four champion probe droids on the daily version of Ziost. There is a 10% chance of spawning a champion droid from each wreck. The enemies needed needed to complete these are;
X-124D | X-361D | X-662J | X-R37T
25 Legacy Points | Grants Legacy Title: Surveillance Smasher on completion
This is a hidden achievement
This achievement is unlocked for completing all 4 probe droid achievements on the daily version of Ziost. The achievements needed to complete this are;
Destroyed X-124D | Destroyed X-361D | Destroyed X-662J | Destroyed X-R37T
25 Legacy Points
This achievement is unlocked for completing all three bonus mission achievements in the Military Outpost on the story version of Ziost. The achievements needed to complete this are;
Evacuation Protocols: Escape Route | Evacuation Protocols: Invasion Defense | Evacuation Protocols: Landing Zone
10 Legacy Points | 10 Legacy Points | 10 Legacy Points
These are hidden achievements
These achievements are unlocked for completing the three bonus missions in the Military Outpost on the story version of Ziost. The missions needed to complete these are;
Evacuation Protocols: Escape Route | Evacuation Protocols: Invasion Defense | Evacuation Protocols: Landing Zone
25 Legacy Points
This achievement is unlocked for completing all four bonus mission achievements in the New Adasta's Central District on the story version of Ziost. The achievements needed to complete this are;
Free the Minds | Megalomania | Not-So-Hidden Stash | They Will Survive
10 Legacy Points | 5 Legacy Points | 5 Legacy Points | 10 Legacy Points
These are hidden achievements
These achievements are unlocked for completing the four bonus missions in the New Adasta's Central District on the story version of Ziost. The missions needed to complete these are;
Free the Minds | Megalomania | Not-So-Hidden Stash | They Will Survive
25 Legacy Points | Grants Item: Potted Plant: Blooming Bud on completion
This achievement is unlocked for completing all three bonus mission achievements in the People's Tower on the story version of Ziost. The achievements needed to complete this are;
I Want to Fly Fast | Shut Them Down | Time to Move
5 Legacy Points | 5 Legacy Points | 10 Legacy Points
These are hidden achievements
These achievements are unlocked for completing the three bonus missions in the People's Tower on the story version of Ziost. The missions needed to complete these are;
I Want to Fly Fast | Shut Them Down | Time to Move
25 Legacy Points | Grants Item: Rark K-133T on completion
This achievement is unlocked for completing all bonus mission meta achievements on the story version of Ziost. The achievements needed to complete this are;
Dead On | Evacuation Expert | New Adasta Veteran
25 Legacy Points | Grants Legacy Title: Rockcrusher on completion
This achievement is unlocked for killing 50 monoliths on the story or daily version of Ziost. The enemies needed to complete this are;
Colossal Monolith | Devastator Monolith | Minor Monolith | Monolith | Raging Monolith | Worldbreaker Monolith
10 Legacy Points
This is a hidden achievement
This achievement is unlocked for collecting 2 lore entries on the daily version of Ziost. The lore entries needed to complete this are;
Galactic History 94: The Sacking of Coruscant | Galactic History 95: A Cold War Begins
10 Legacy Points
This is a hidden achievement
This achievement is unlocked using the GSI SJ-4 Rapid Geoanalysis Scout speeder used during the mission "[DAILY] Dead Pulse". The monolith you have to jump has a preset pathway, however it only moves along the path if you stay within ~50 meters. You will have to position the monolith near the jump point, go back to the mission start to obtain the speeder, and then quickly get to the specified jump location to jump the gap as the monolith passes below.