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