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