Full list of all 75 Borderlands 2 achievements. It takes around 150-200 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.
Discovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron.
Discovered all named locations.
Got an item from Michael Mamaril.
Killed Donkey Mong.
Discovered all named locations in Three Horns, Tundra Express, and Frostburn Canyon.
Discovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve.
Completed all side missions.
Gave Claptrap a high five.
Killed a Chubby.
Reached level 50.
Had Purple-rated gear or better equipped in every slot.
Discovered all named locations in Sanctuary, Opportunity, and Lynchwood.
Completed Round 5 of any Circle of Slaughter.
Reached level 25.
Redeemed 25 tokens.
Tipped Moxxi $10,000.
Remained in Zero's Decepti0n mode for ten seconds straight.
Allowed a goliath to level up four times before killing him.
Completed 20 side missions.
Killed a Constructor without it ever building another bot.
Purchased 5 items from the black market.
Unlocked 10 customization items.
Reached level 10.
Killed a flying enemy with a thrown Tediore weapon.
Reached level 5.
Revived someone from "Fight for Your Life!" that is on your friends list.
Completed level 1 of all non-level-specific challenges with a single character.
Killed 100 enemies with the Sabre turret.
Phaselocked 100 enemies.
Gunzerked continuously for 90 seconds.
Won the most challenging round in Murderlin's Temple.
Wielded the Mysterious Amulet.
Showed thine worst enemy, the abomination known as "The Darkness", who is the nerdiest of them all.
Demonstrated your skill, or lack thereof, at rolling the magical treasure orb of many sides.
Vanquished the Ancient Dragons of Destruction.
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.
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".
Collected 10 pictures of Moxxi in Campaign of Carnage.
Completed all Campaign of Carnage side missions.
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 Haderax the Invincible.
Complete the mission "Paradise Found".
Defeat the Dark Web.
Activate the Backburner's firewall.
Allow Tiny Tina to arm the moonshot cannon.