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