Mek-Sha is the second planet released with the 6.0 Onslaught update. There are 430 legacy points spread between 26 achievements in 6 subsections and 3 unobtainable achievements. Most of these achievements are relatively easy to unlock.
5 Legacy Points
This achievement is unlocked for killing any combination of 50 Exchange members on Mek-Sha. The enemies needed to complete this are;
Exchange Affiliate | Exchange Muscle
5 Legacy Points
This achievement is unlocked for killing any combination of 50 Dire Skull members on Mek-Sha. The enemies needed to complete this are;
Dire Skull Battlelord | Dire Skull Bladekin | Dire Skull Blasterkin | Dire Skull Neophyte | Dire Skull Stormkin | Dire Skull Swordling
Dire Skull Warmaker
5 Legacy Points
This achievement is unlocked for killing any combination of 50 Harido Wald members on Mek-Sha. The enemies needed to complete this are;
Guard | Veek the Sneak | Wald Ganger
5 Legacy Points
This achievement is unlocked for killing any combination of 50 Jott's Junkers members on Mek-Sha. The enemies needed to complete this are;
Jott's Crew Droid | Jott's Crew Mechanic Droid | Jott's Crew Medic | Jott's Crew Welder Droid | Jott's Engineer
5 Legacy Points
This achievement is unlocked for killing any combination of 50 Brothers members on Mek-Sha. The enemies needed to complete this are;
Brother | Brothers Lieutenant | Brothers Overseer | Brothers Ringleader
10 Legacy Points
This achievement is unlocked for killing all 4 planetary champions on Mek-Sha. The enemies needed to complete this are;
Fen Inor | Gouge | Niv the Shiv | Rhallor
5 Legacy Points
This achievement is are for killing 5 groups of Back-Alley Thugs who are harassing Hapless Travelers.
5 Legacy Points
This achievement is unlocked for killing any combination of 50 Huttbreaker members on Mek-Sha. The legacy points and achievement are not accessible at this time.
5 Legacy Points
This achievement is unlocked for killing any combination of 50 Dar'Manda members on Mek-Sha. The legacy points and achievement are not accessible at this time.
25 Legacy Points
This achievement is unlocked for discovering all 16 map locations on Mek-Sha on one character. The sections needed to complete this are;
25 Legacy Points
This achievement is unlocked for collecting both datacrons on Mek-Sha. The datacrons needed to complete this are;
Huttbreaker's Rebellion | The Hutts Discover Mek-Sha
25 Legacy Points
This achievement is unlocked for completing the Republic faction story on Mek-Sha. The mission needed to complete this is;
Defending the Docks
25 Legacy Points
This achievement is unlocked for completing the Imperial faction story on Mek-Sha. The mission needed to complete this is;
The Failsafe
5 Legacy Points | 10 Legacy Points | 25 Legacy Points
These achievement are unlocked for completing 5, 20, and 50 heroic missions on Mek-Sha. The missions needed to complete these are;
[HEROIC 2+] A Matter of Respect | | [HEROIC 2+] Breaking the Yoke | [HEROIC 2+] Brotherhood Emancipation | [HEROIC 2+] Junking Jott's Crew
We're Wanted Men
10 Legacy Points | 25 Legacy Points | 100 Legacy Points
Grants Item: Honorary Bouncer's Badge on completion
These achievement are unlocked for killing party crashers from the Dar'Manda, Dire Skulls, and Nova blades 1, 5, and 10 times each. The mission needed to complete these are;
We're Wanted Men
10 Legacy Points
This achievement is unlocked for defeating a party crasher from the Dar'Manda, Dire Skulls, and Nova Blades once each. This achievement was related to the mission [HEROIC 4] Turf War, which was replaced by "We're Wanted Men".
5 Legacy Points | 10 Legacy Points | 25 Legacy Points | 50 Legacy Points
These achievements are unlocked for killing 50, 100, 150, and 250 player characters on Mek-Sha. The easiest place to farm these is near the Slugfall Cantina, as the distance from the respawn point is very short.
25 Legacy Points
This achievement is unlocked for completing combat and exploration achievements on Mek-Sha. The achievements needed to complete this are;
Cleaning Up the Streets | Explorer of Mek-Sha | Loremaster of Mek-Sha | Mek-Sha Datacron Master | Mek-Sha Sightseer
10 Legacy Points
This achievement is unlocked for collecting 8 codex entries on Mek-Sha. The codex entries needed to complete this are;
Dar'manda (Mek-Sha Gang) | Harido Wald | Huttbreaker | Indigo | Junker Jott | Mek-Sha | The Brothers | Veek the Sneak
25 Legacy Points
This achievement is unlocked for visiting and interacting with several items and locations around Mek-Sha.
Complimentary Mek-Sha Meltdown is obtained from clickable mugs
Huttfall Commemoration Plaque is obtained from a clickable plaque
Mek-Sha Ultra Deals is obtained from interacting with the Bazaar Kiosk three times
Slugfall Cantina Dancefloor is obtained from a proximity trigger
TaunTaun Exotic Steaks is scanned with EV2 Macrobinoculars
The Friendly Frond is scanned with EV2 Macrobinoculars
Watering Hole Wish Receiver is obtained from a clickable console
The items and locations needed to complete this are;
Bazaar Kiosk | Complimentary Mek-Sha Meltdown | Friendly Frond | Hutt's End Pier | Original TaunTaun Steak Co.
Slugfall Cantina Dancefloor | Watering Hold Wish
25 Legacy Points | Grants Legacy Title: Lawbringer on completion
This is a hidden achievement
This achievement is unlocked for completing combat achievements on Mek-Sha. The achievements needed to complete this are;
Clean Up the Streets | Decimate the Dire Skulls | Excise the Exchange | Stop Crimes | Weaken the Wald
5 Legacy Points
This is a hidden achievement
This achievement is unlocked for completing 15 daily Tradehouse missions. These missions only become available after finishing the Onderon and Mek-Sha story lines. The missions needed to complete this are;
A Groundbreaking Opportunity | Culinary Pursuits | More Credits than Sense | Things Czerka Left | Turf War Troubles