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.
Completed Come Fly With Me.
Played the game from start to finish in Hardcore Mode.
Completed No Gods, No Masters.
Completed Wild Card.
Completed Eureka!
Completed For the Republic.
Completed The Legend of the Star.
Got banned from all the Strip's casinos.
Completed All or Nothing.
Completed The House Always Wins.
Completed You'll Know It When It Happens.
Healed 10,000 points of damage with food.
Discovered all snow globes.
Installed 20 weapon mods.
Caused 10,000 damage with Explosives.
Recruited all companions.
Picked 50 pockets.
You Discovered 125 locations.
Reached 30th level.
Completed That Lucky Old Sun.
Completed Volare!
Completed Veni, Vidi, Vici.
Healed 10,000 points of damage with Stimpaks.
Caused 10,000 damage with Melee Weapons.
Completed Render Unto Caesar.
Completed Arizona Killer.
Hacked 25 terminals.
Made 50 Speech challenges.
Won 30 games of Caravan.
Completed Return to Sender.
Completed Talent Pool.
Crafted 20 items.
Completed Ring-a-Ding-Ding.
Reached 20th level.
Caused 10,000 damage with Unarmed weapons.
Won 3 games of Caravan.
Caused 10,000 damage with Energy Weapons.
Sold 10,000 caps worth of goods.
Completed G.I. Blues.
Played 10 spins of Slots.
Played 10 spins of Roulette.
Played 10 hands of Blackjack.
Discovered 50 locations.
Caused 10,000 damage with Guns.
Reached 10th level.
Completed They Went That-a-Way.
Picked 25 locks.
Recruited a companion.
Repaired 30 items.
Completed Ain't That a Kick in the Head.
Confronted Father Elijah in the Sierra Madre's Vault.
Trapped Father Elijah in the Sierra Madre's Vault.
Completed the Sierra Madre Gala Event.
Collected 500 Sierra Madre Chips.
Recruited Dean Domino, Christine and Dog.
Crushed the White Legs.
Evacuated Zion.
Scouted the Zion Valley for signs of the White Legs.
Resupplied Daniel and the Sorrows.
Arrived at Zion.
Completed Old World Blues.
Made up your mind... about your brain.
Recovered X-8 vertebrae-pulse-de-sensitizer frequency!
Recovered X-13 cardiac regulator sneaky suit!
Reactivated all of the Sink's robotic assistants.
Detonated all of the warheads in the Divide.
Completed Lonesome Road.
Found all of ED-E's upgrades in the Divide.
Acquired all upgrades for the Divide's signature weapon.
Decided the fate of all the Divide dwellers.
Completed any three Gun Runners' Arsenal (GRA) three star (***) Challenges.
Caused 10,000 damage with unique Mojave Wasteland weapons.
Completed any three Gun Runners' Arsenal (GRA) two star (**) Challenges.
Completed any three Gun Runners' Arsenal (GRA) one star (*) Challenges.
Caused 10,000 damage with Gun Runners' Arsenal (GRA) Weapons.