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