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