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