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.
Completed level 1 of all non-level-specific challenges with a single character.
Remained in Zero's Decepti0n mode for ten seconds straight.
Phaselocked 100 enemies.
Gunzerked continuously for 90 seconds.
Killed a flying enemy with a thrown Tediore weapon.
Completed all side missions.
Killed Donkey Mong.
Discovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron.
Discovered all named locations.
Allowed a goliath to level up four times before killing him.
Discovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve.
Got an item from Michael Mamaril.
Discovered all named locations in Three Horns, Tundra Express, and Frostburn Canyon.
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.
Redeemed 25 tokens.
Reached level 25.
Tipped Moxxi $10,000.
Gave Claptrap a high five.
Killed a Chubby.
Killed 100 enemies with the Sabre turret.
Unlocked 10 customization items.
Killed a Constructor without it ever building another bot.
Purchased 5 items from the black market.
Completed 20 side missions.
Reached level 10.
Revived someone from "Fight for Your Life!" that is on your friends list.
Reached level 5.
Wielded the Mysterious Amulet.
Vanquished the Ancient Dragons of Destruction.
Fed thy noble queen 3 times during one visit to her quarters.
Won the most challenging round in Murderlin's Temple.
Completed thy quest by rescuing yonder queen.
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.
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".
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.