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