Here is the full list of all 46 Wasteland 2 achievements.
Complete Matthias' quest to kill in LA
Complete the game with a Ranger dressed in a gorilla costume
Return to Arizona
Allow Vargas to detonate the nuke
Read every lore entry in the game
Make peace between Hollywood and the Bastion
Find all of the world map caches
Find all hidden shrines in the game
Help Retribution Jones take over Hollywood
Kill all of the God's Militia leadership
Get Ranger Team Delta sent after you
Learn Combat Shooting
Dig up all the holes at Redondo Beach
You foolishly pushed the button in the Hollywood Sewers
Restore Rodia's mayor to office
Help Chris Van Graas Jr. become mayor of Rodia
Intervene in a God's Militia execution
Convince the Mannerites to stop eating people
Put the Robbinsons in power in Angel Oracle
Help Mr. Manners eliminate Tori Robbinson's plot
Go to Los Angeles
Find the hidden cache of extraterrestrial cartridges
Save Binh from Tinker
Steal the Golden Spike from Kekkahbah's fortress without being detected
Send the nuke to the DBM
Disarm the nuke
Send the nuke to the Mad Monks
Outfit 3 rangers in the amigos hat, jacket, and pants
Meet Ralphy's dad with Ralphy in tow
Find a Wasteland 1 disk
Give the Night Terror 20 pieces of candy
Use the code from Finster's head to get into Darwin's underground complex
Make peace between the Atchisons and Topekans
Use Animal Whisperer to charm 20 animals
Scotchmo steals 5 bottles of Snake Squeezins from you
Witness Angela kill Samuel Haas
Get an STD
Apply 20 weapon mods
Repair 10 locks or safes using Mechanical Repair
Get 3 goats following the party at once
Have a party member turn into a pod person
Set off the nuke in Ranger Citadel before going to LA
Find The Fin's poster
Survive a combat encounter with only 1 party member standing
Accidentally kill a party member with friendly fire
Tip 5 cows