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.
Phaselocked 100 enemies.
Completed all side missions.
Reached level 50.
Killed 100 enemies with the Sabre turret.
Discovered all named locations.
Discovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron.
Killed Donkey Mong.
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.
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.
Discovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve.
Completed Round 5 of any Circle of Slaughter.
Reached level 25.
Revived someone from "Fight for Your Life!" that is on your friends list.
Redeemed 25 tokens.
Tipped Moxxi $10,000.
Completed 20 side missions.
Killed a Constructor without it ever building another bot.
Killed a flying enemy with a thrown Tediore weapon.
Purchased 5 items from the black market.
Allowed a goliath to level up four times before killing him.
Killed a Chubby.
Reached level 10.
Gave Claptrap a high five.
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.
Wielded the Mysterious Amulet.
Fed thy noble queen 3 times during one visit to her quarters.
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.
Demonstrated your skill, or lack thereof, at rolling the magical treasure orb of many sides.
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.
Completed the mission "Long Way To The Top".
Collected 10 pictures of Moxxi in Campaign of Carnage.
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.