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 Round 5 of any Circle of Slaughter.
Discovered all named locations in Sanctuary, Opportunity, and Lynchwood.
Killed a Chubby.
Allowed a goliath to level up four times before killing him.
Remained in Zero's Decepti0n mode for ten seconds straight.
Reached level 50.
Killed a Constructor without it ever building another bot.
Reached level 25.
Gave Claptrap a high five.
Tipped Moxxi $10,000.
Redeemed 25 tokens.
Purchased 5 items from the black market.
Discovered all named locations.
Had Purple-rated gear or better equipped in every slot.
Gunzerked continuously for 90 seconds.
Revived someone from "Fight for Your Life!" that is on your friends list.
Completed 20 side missions.
Phaselocked 100 enemies.
Killed a flying enemy with a thrown Tediore weapon.
Reached level 5.
Reached level 10.
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.
Killed 100 enemies with the Sabre turret.
Got an item from Michael Mamaril.
Killed Donkey Mong.
Completed all side missions.
Completed thy quest by rescuing yonder queen.
Unsheathed 5 swords from Immortal Skeletaurs without leaving the area.
Introduced thyself to the White Knight.
Demonstrated your skill, or lack thereof, at rolling the magical treasure orb of many sides.
Slew Mister Boney Pants Guy.
Fed thy noble queen 3 times during one visit to her quarters.
Showed thine worst enemy, the abomination known as "The Darkness", who is the nerdiest of them all.
Won the most challenging round in Murderlin's Temple.
Wielded the Mysterious Amulet.
Vanquished the Ancient Dragons of Destruction.
Completed the mission "The Fall of Nakayama".
Completed all Hammerlock's Hunt side missions.
Discovered all named locations in Hammerlock's Hunt.
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.
Defeat Haderax the Invincible.
Defeat the Dark Web.
Complete the mission "Paradise Found".
Allow Tiny Tina to arm the moonshot cannon.
Activate the Backburner's firewall.