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