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