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