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.
Got an item from Michael Mamaril.
Gunzerked continuously for 90 seconds.
Had Purple-rated gear or better equipped in every slot.
Completed all side missions.
Completed level 1 of all non-level-specific challenges with a single character.
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.
Killed Donkey Mong.
Reached level 50.
Remained in Zero's Decepti0n mode for ten seconds straight.
Allowed a goliath to level up four times before killing him.
Phaselocked 100 enemies.
Tipped Moxxi $10,000.
Discovered all named locations in Sanctuary, Opportunity, and Lynchwood.
Reached level 25.
Completed Round 5 of any Circle of Slaughter.
Killed a Chubby.
Killed a Constructor without it ever building another bot.
Killed 100 enemies with the Sabre turret.
Gave Claptrap a high five.
Redeemed 25 tokens.
Completed 20 side missions.
Purchased 5 items from the black market.
Reached level 10.
Revived someone from "Fight for Your Life!" that is on your friends list.
Unlocked 10 customization items.
Killed a flying enemy with a thrown Tediore weapon.
Reached level 5.
Wielded the Mysterious Amulet.
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.
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.
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.
Discovered all named locations in Hammerlock's Hunt.
Completed all Hammerlock's Hunt side missions.
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".
Discovered all named locations in Oasis and the surrounding Pirate's Booty zones.
Completed all Pirate's Booty side missions.
Completed the mission "X Marks the Spot".
Defeat Haderax the Invincible.
Complete the mission "Paradise Found".
Defeat the Dark Web.
Allow Tiny Tina to arm the moonshot cannon.
Activate the Backburner's firewall.