Full list of all 75 Fallout: New Vegas achievements worth 1,655 gamerscore. It takes around 60-80 hours to unlock all of the achievements in the base game.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 5 DLC packs containing 25 achievements worth 655 Gamerscore.
Achievements they've won
Achievements they've not won
Win 30 games of Caravan.
Get banned from all the Strip's casinos.
Complete The Legend of the Star.
Complete Talent Pool.
Pick 50 pockets.
Heal 10,000 points of damage with food.
Play the game from start to finish in Hardcore Mode.
Install 20 weapon mods.
Complete Veni, Vidi, Vici.
Complete Render Unto Caesar.
Complete Arizona Killer.
Heal 10,000 points of damage with Stimpaks.
Discover all snow globes.
Complete All or Nothing.
Complete The House Always Wins.
Reach 30th level.
Complete For the Republic.
Complete No Gods, No Masters.
Complete Wild Card.
Complete You'll Know It When It Happens.
Cause 10,000 damage with Explosives.
Hack 25 terminals.
Make 50 Speech challenges.
Discover 125 locations.
Cause 10,000 damage with Unarmed weapons.
Cause 10,000 damage with Energy Weapons.
Cause 10,000 damage with Melee Weapons.
Recruit all companions.
Sell 10,000 caps worth of goods.
Reach 20th level.
Complete G.I. Blues.
Play 10 spins of Slots.
Play 10 spins of Roulette.
Play 10 hands of Blackjack.
Win 3 games of Caravan.
Discover 50 locations.
Complete Return to Sender.
Cause 10,000 damage with Guns.
Complete They Went That-a-Way.
Complete Come Fly With Me.
Reach 10th level.
Recruit any companion.
Pick 25 locks.
Complete That Lucky Old Sun.
Repair 30 items.
Craft 20 items.
Complete Ain't That a Kick in the Head.
Confront Father Elijah in the Sierra Madre's Vault.
Trap Father Elijah in the Sierra Madre's Vault.
Complete the Sierra Madre Gala Event.
Recruit Dean Domino, Christine and Dog.
Collect 500 Sierra Madre Chips
Crush the White Legs.
Scout the Zion Valley for signs of the White Legs.
Resupply Daniel and the Sorrows.
Arrive at Zion.
Complete Old World Blues.
Make up your mind... about your brain.
Reactivate all of the Sink's robotic assistants.
Recover X-13 cardiac regulator sneaky suit!
Recover X-8 vertebrae-pulse-de-sensitizer frequency!
Find all of ED-E's upgrades in the Divide.
Detonate all of the warheads in the Divide.
Complete Lonesome Road.
Decide the fate of all the Divide dwellers.
Acquire all upgrades for the Divide's signature weapon.
Complete any three Gun Runners' Arsenal (GRA) three star (***) Challenges.
Complete any three Gun Runners' Arsenal (GRA) two star (**) Challenges.
Complete any three Gun Runners' Arsenal (GRA) one star (*) Challenges.
Cause 10,000 damage with Gun Runners' Arsenal (GRA) Weapons.
Cause 10,000 damage with unique Mojave Wasteland weapons.