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.
Got banned from all the Strip's casinos.
Won 30 games of Caravan.
Won 3 games of Caravan.
Completed Eureka!
Completed For the Republic.
Completed Veni, Vidi, Vici.
Completed Render Unto Caesar.
Completed Arizona Killer.
Completed No Gods, No Masters.
Picked 50 pockets.
Healed 10,000 points of damage with food.
Completed The Legend of the Star.
Caused 10,000 damage with Melee Weapons.
Caused 10,000 damage with Unarmed weapons.
Healed 10,000 points of damage with Stimpaks.
Completed Wild Card.
Played the game from start to finish in Hardcore Mode.
Completed All or Nothing.
Completed The House Always Wins.
Completed You'll Know It When It Happens.
Caused 10,000 damage with Explosives.
Hacked 25 terminals.
Reached 30th level.
Recruited all companions.
Caused 10,000 damage with Energy Weapons.
Completed Volare!
Discovered all snow globes.
Completed Talent Pool.
Played 10 spins of Slots.
Installed 20 weapon mods.
Made 50 Speech challenges.
Completed G.I. Blues.
Completed Return to Sender.
You Discovered 125 locations.
Recruited a companion.
Reached 20th level.
Played 10 spins of Roulette.
Played 10 hands of Blackjack.
Completed Ring-a-Ding-Ding.
Completed They Went That-a-Way.
Sold 10,000 caps worth of goods.
Discovered 50 locations.
Caused 10,000 damage with Guns.
Picked 25 locks.
Completed Come Fly With Me.
Reached 10th level.
Completed That Lucky Old Sun.
Crafted 20 items.
Repaired 30 items.
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.
Recruited Dean Domino, Christine and Dog.
Collected 500 Sierra Madre Chips.
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.
Reactivated all of the Sink's robotic assistants.
Recovered X-8 vertebrae-pulse-de-sensitizer frequency!
Recovered X-13 cardiac regulator sneaky suit!
Detonated all of the warheads in the Divide.
Completed Lonesome Road.
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.
Caused 10,000 damage with Gun Runners' Arsenal (GRA) Weapons.
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.