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