Here is the full list of all 46 Wasteland 2: Director's Cut achievements. It takes around 100-120 hours to unlock all of the achievements on Windows.
Complete the game with a Ranger dressed in a gorilla costume
Read every lore entry in the game
Allow Vargas to detonate the nuke
Complete Matthias' quest to kill in LA
Find all of the world map caches
Make peace between Hollywood and the Bastion
Help Retribution Jones take over Hollywood
Dig up all the holes at Redondo Beach
You foolishly pushed the button in the Hollywood Sewers
Kill all of the God's Militia leadership
Learn Combat Shooting
Find all hidden shrines in the game
Intervene in a God's Militia execution
Restore Rodia's mayor to office
Help Chris Van Graas Jr. become mayor of Rodia
Help Mr. Manners eliminate Tori Robbinson's plot
Put the Robbinsons in power in Angel Oracle
Convince the Mannerites to stop eating people
Go to Los Angeles
Save Binh from Tinker
Send the nuke to the Mad Monks
Send the nuke to the DBM
Disarm the nuke
Outfit 3 rangers in the amigos hat, jacket, and pants
Meet Ralphy's dad with Ralphy in tow
Get Ranger Team Delta sent after you
Make peace between the Atchisons and Topekans
Scotchmo steals 5 bottles of Snake Squeezins from you
Witness Angela kill Samuel Haas
Get an STD
Steal the Golden Spike from Kekkahbah's fortress without being detected
Get 3 goats following the party at once
Find the hidden cache of extraterrestrial cartridges
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
Set off the nuke in Ranger Citadel before going to LA
Use Animal Whisperer to charm 20 animals
Tip 5 cows
Repair 10 locks or safes using Mechanical Repair
Find The Fin's poster
Have a party member turn into a pod person
Return to Arizona
Survive a combat encounter with only 1 party member standing
Accidentally kill a party member with friendly fire
Apply 20 weapon mods