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.
Killed 100 enemies with the Sabre turret.
Allowed a goliath to level up four times before killing him.
Discovered all named locations.
Completed level 1 of all non-level-specific challenges with a single character.
Killed Donkey Mong.
Completed all side missions.
Killed a flying enemy with a thrown Tediore weapon.
Reached level 50.
Had Purple-rated gear or better equipped in every slot.
Discovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron.
Revived someone from "Fight for Your Life!" that is on your friends list.
Discovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve.
Completed Round 5 of any Circle of Slaughter.
Discovered all named locations in Sanctuary, Opportunity, and Lynchwood.
Reached level 25.
Discovered all named locations in Three Horns, Tundra Express, and Frostburn Canyon.
Killed a Constructor without it ever building another bot.
Completed 20 side missions.
Got an item from Michael Mamaril.
Tipped Moxxi $10,000.
Phaselocked 100 enemies.
Killed a Chubby.
Purchased 5 items from the black market.
Redeemed 25 tokens.
Reached level 10.
Gave Claptrap a high five.
Reached level 5.
Unlocked 10 customization items.
Fed thy noble queen 3 times during one visit to her quarters.
Won the most challenging round in Murderlin's Temple.
Demonstrated your skill, or lack thereof, at rolling the magical treasure orb of many sides.
Vanquished the Ancient Dragons of Destruction.
Completed thy quest by rescuing yonder queen.
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.
Wielded the Mysterious Amulet.
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".
Activate the Backburner's firewall.
Allow Tiny Tina to arm the moonshot cannon.
Defeat Haderax the Invincible.
Defeat the Dark Web.
Complete the mission "Paradise Found".