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