Here is the full list of all 142 WildStar achievements.
Win 500 battlegrounds
Earn the tier 3 for each of the Crimson, Cobalt, and Viridian essence collection achievements
Unlock all support ability nodes
Achieve a 2,200 Personal Battleground Rating
Unlock all assault ability nodes
Collect Essences of all colors totaling 375,000
Defeat Phage Maw within the Genetic Archives Raid
Defeat Kuralak the Defiler within the Genetic Archives Raid
Defeat the Prime Evolutionary Operants within the Initlialization Core Y-83 Raid Dungeon
Defeat the System Daemons within the Datascape Raid
Defeat Gloomclaw within the Datascape Raid
Complete the Infestation Expedition on Veteran difficulty
Complete the Outpost M-13 Expedition on Veteran difficulty
Complete the Rage Logic Expedition on Veteran difficulty
Complete the Space Madness Expedition on Veteran difficulty
Complete the Gauntlet Expedition on Veteran difficulty
Complete the They Came from Fragment Zero! Expedition on Veteran difficulty
Complete the Deep Space Exploration Expedition on Veteran difficulty
Earn a bronze or higher rating on the Siege of Tempest Refuge Adventure on Veteran difficulty
Earn a bronze or higher rating in the Ruins of Kel Voreth Dungeon on Veteran difficulty
Earn a bronze or higher rating in the Skullcano Dungeon on Veteran difficulty
Earn a bronze or higher rating on the War of the Wilds Adventure on Veteran difficulty
Earn a bronze or higher rating on the Malgrave Trail Adventure on Veteran difficulty
Earn a bronze or higher rating in the Stormtalon's Lair Dungeon on Veteran difficulty
Kill 100 Stemdragons
Earn a bronze or higher rating in the Sanctuary of the Swordmaiden Dungeon on Veteran difficulty
Earn a bronze or higher rating on the Crimelords of Whitevale Adventure on Veteran difficulty
Earn a bronze or higher rating in the Protogames Academy Dungeon on Veteran difficulty
Earn a bronze or higher rating in the Sanctuary of the Swordmaiden Dungeon
Earn a bronze or higher rating in the Skullcano Dungeon
Defeat the Phageborn Convergence within the Genetic Archives Raid
Earn a bronze or higher rating on the Malgrave Trail Adventure
Kill 50 Steamgliders
Kill 100 Snoglugs
Collect 10,000 Crimson Essences
Kill 100 Scrabs
Earn a bronze or higher rating in the Ruins of Kel Voreth Dungeon
Complete 25 Scientist Path missions
Collect 10,000 Viridian Essences
Defeat the Phagetech Prototypes within the Genetic Archives Raid
Earn a bronze or higher rating on the Riot in the Void Adventure
Earn a bronze or higher rating in the Ultimate Protogames Dungeon on Veteran difficulty
Observe what might happen if the Entity's plan is carried out
Collect 7,500 Violet Essences
Defeat each of the Elementals within the Datascape Raid
Defeat Experiment X-89 within Genetic Archives Raid
Defeat the Maelstrom Authority within the Datascape Raid
Reach Expert level with a crafting tradeskill
Complete 25 Explorer Path missions
Reach Artisan level with a crafting tradeskill
Kill 100 Ravenoks
Earn a bronze or higher rating on the Crimelords of Whitevale Adventure
Reach Journeyman level with a crafting tradeskill
Kill 100 Malverines
Kill 100 Murghs
Complete 25 Settler Path missions
Allocate 25 points in the Primal Matrix
Achieve a 2,000 Personal Battleground Rating
Earn a Bronze or higher rating in the Journey Into the OMNICore World Story Expedition
Kill 100 Heynars
Kill 100 Girroks
Kill 20 Gorganoths
Earn a bronze or higher rating on the Siege of Tempest Refuge Adventure
Kill 100 Stumpkins
Achieve a 1,800 Personal Battleground Rating
Complete 25 Contracts from the Protostar Contract Dispenser in Thayd or Illium
Kill 100 Gronyx
Achieve a 1,500 Personal Battleground Rating
Defeat Avatus within the Datascape Raid
Kill 100 Garrs
Defeat Dreadphage Ohmna within the Genetic Archives Raid
Kill 100 Dreg
Kill 100 Rockhordes
Meet Drusera and learn about the Genesis Prime
Become beloved by your faction
Complete the Gauntlet Expedition
Achieve a kill chain of 8 PVP enemies in a Battleground
Kill 100 Falkrin
Win 300 battlegrounds
Kill 100 Moodies
Complete 100 Challenges
Earn a bronze or higher rating on the Hycrest Insurrection Adventure
Complete the Space Madness Expedition
Collect 10,000 Cobalt Essences
Complete 25 Soldier Path missions
Survive the Entity's trials of strength
Complete the Rage Logic Expedition
Travel with Drusera through the portal to Exo-Lab X39
Kill 100 Yetis
Achieve a kill chain of 5 PVP enemies in a Battleground
Win 150 battlegrounds
Kill 100 Boulderbacks
Achieve a kill chain of 3 PVP enemies in a Battleground
Kill 100 Vulcarrions
Kill 100 Chompacabras
Kill 100 Rootbrutes
Kill 100 Ascendant Creatures
Complete the Deep Space Exploration Expedition
Kill 100 Bandits
Kill 100 Buzzbings
Win 50 battlegrounds
Kill 100 Canimids
Kill 50 Mammodins
Kill 200 Strain Creatures
Earn a bronze or higher rating in the Stormtalon's Lair Dungeon
Win your first battleground
Complete 500 non-repeatable quests
Kill 100 Razortails
Reach Character level 50
Kill 100 Pumeras
Kill 100 Torine
Kill 100 Squirg Zombies
Kill 100 Elementals
Kill 100 Ikthians
Kill 100 Terminites
Enter the Mysterious Portal in Thayd or Illium and learn what secret it holds
Reach Character level 40
Kill 100 Daguns
Earn 10 Platinum
Complete the Infestation Expedition
Kill 100 Spiders
Kill 100 Darkspur
Complete the Protogames Academy Dungeon
Kill 100 Pell
Reach Character level 30
Kill 100 Eldan Constructs
Complete the Outpost M-13 Expedition
Reach Apprentice level with a crafting tradeskill
You built a cozy house
Reach Character level 20
Complete 100 non-repeatable quests
Perform a Godly Kill
Collect 40 OmniBits
Learn a crafting tradeskill
Complete the They Came from Fragment Zero! Expedition
Kill 100 Skeech
Earn a bronze or higher rating on the War of the Wilds Adventure
Reach Character level 10
Add a player to your friends list
Join a group
Get 100 Triple Kills
Deliver a Critical Deathblow, leaving your enemy in pieces