Full list of all 75 Borderlands 2 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 5 DLC packs containing 25 achievements.
Killed 100 enemies with the Sabre turret.
Killed a flying enemy with a thrown Tediore weapon.
Killed Donkey Mong.
Discovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve.
Got an item from Michael Mamaril.
Discovered all named locations in Sanctuary, Opportunity, and Lynchwood.
Reached level 50.
Completed Round 5 of any Circle of Slaughter.
Revived someone from "Fight for Your Life!" that is on your friends list.
Had Purple-rated gear or better equipped in every slot.
Tipped Moxxi $10,000.
Completed 20 side missions.
Gave Claptrap a high five.
Killed a Chubby.
Reached level 25.
Phaselocked 100 enemies.
Killed a Constructor without it ever building another bot.
Redeemed 25 tokens.
Purchased 5 items from the black market.
Reached level 10.
Unlocked 10 customization items.
Reached level 5.
Completed level 1 of all non-level-specific challenges with a single character.
Allowed a goliath to level up four times before killing him.
Discovered all named locations in Three Horns, Tundra Express, and Frostburn Canyon.
Discovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron.
Discovered all named locations.
Gunzerked continuously for 90 seconds.
Remained in Zero's Decepti0n mode for ten seconds straight.
Completed all side missions.
Wielded the Mysterious Amulet.
Demonstrated your skill, or lack thereof, at rolling the magical treasure orb of many sides.
Introduced thyself to the White Knight.
Fed thy noble queen 3 times during one visit to her quarters.
Completed thy quest by rescuing yonder queen.
Unsheathed 5 swords from Immortal Skeletaurs without leaving the area.
Slew Mister Boney Pants Guy.
Showed thine worst enemy, the abomination known as "The Darkness", who is the nerdiest of them all.
Won the most challenging round in Murderlin's Temple.
Vanquished the Ancient Dragons of Destruction.
Completed the mission "The Fall of Nakayama".
Completed all Hammerlock's Hunt side missions.
Discovered all named locations in Hammerlock's Hunt.
Completed the mission "Long Way To The Top".
Completed all Campaign of Carnage side missions.
Collected 10 pictures of Moxxi in Campaign of Carnage.
Completed the mission "X Marks the Spot".
Discovered all named locations in Oasis and the surrounding Pirate's Booty zones.
Completed all Pirate's Booty side missions.
Allow Tiny Tina to arm the moonshot cannon.
Activate the Backburner's firewall.
Defeat Haderax the Invincible.
Defeat the Dark Web.
Complete the mission "Paradise Found".