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