Full list of all 63 Borderlands: The Pre-Sequel achievements. It takes around 80-100 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 2 DLC packs containing 13 achievements.
Saved the Guardians from the Scav Poachers.
Defeated the Empyrean Sentinel.
Discovered all named locations.
Defeated the Opha Superior.
Delivered Zarpedon's message.
Won a duel.
Discovered all named locations in Outlands Canyon, Outlands Spur and Vorago Solitude.
Completed the mission ''Return of Captain Chef''.
Discovered all named locations in Serenity's Waste, Triton Flats and Stanton's Liver.
Completed the mission ''Eye To Eye''.
Discovered all named locations aboard the Helios Space Station.
Reached level 25.
Launched four rockets From Elpis.
Revived 10 players with Oxygen.
Completed the mission ''Watch Your Step''.
Completed the mission ''Science And Violence''.
Completed the mission ''Home Sweet Home''.
Completed 30 side missions.
Completed the mission ''Let's Build A Robot Army''.
Used the Grinder to create an item.
Opened Zarpedon's Chest.
Completed the mission ''Intelligences Of The Artificial Persuasion''.
Pancaked an enemy in the Stingray.
Completed the mission ''To Arms''.
Completed the mission ''A New Direction''.
Reached level 10.
Completed the mission ''Systems Jammed''.
Completed the mission ''Marooned''.
Reached level 5.
Completed the mission ''Lost Legion Invasion''.
Unlocked 10 Customization Items.
Pulled Excalibastard from the stone.
Completed the Sub-Level 13 missions with 3 other players.
Completed all of the side missions.
Defeated the Invincible Empyrean Sentinel.
Killed 100 enemies with Wolf.
Killed 100 enemies with the Aspis.
Experienced all Vault Hunter Modes using VaultHunter.EXE.
Killed 10 enemies in a single activation of Showdown.
Had purple-rated gear or better equipped in every slot.
Completed level 1 of all challenges with a single character.
Reached level 50.
Tried all the Moxxtails in the Up Over Bar in Concordia.
Looted 10 Moonstone Chests.
Had a Lost Legion Eternal kill 3 of his friends.
While airborne, spun 360 degrees then got a kill with a Sniper Rifle without using the scope.
Used the Grinder to create a Legendary item.
Shattered 3 frozen enemies with a single slam attack.
Had an enemy frozen, corroded, ignited, and electrocuted at the same time.
Suffocated for 5 continuous minutes without dying.
Completed all 5 rounds of The Holodome.
Completed the Badass Round of The Holodome.
Completed the Badass Round without going into Fight For Your Life.
Digitized into Claptrap's Brain.
Destroyed the Tassiter Proxy.
Successfully recovered the Override Key.
Gave the H-Source to Jack.
Defeated 5H4D0W-TP.
Outran the Wheel in the Temple of Boom.
Talked to all of Claptrap's Holographic Projections.
Experienced all 9 Game Modes and all 9 Modifiers of the Mutator.
Completed a round using the Mutator.
Killed 10 SpyBugs before they took your photo.