Full list of all 75 Fallout: New Vegas achievements. It takes around 60-80 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 5 DLC packs containing 25 achievements.
Complete Arizona Killer.
Cause 10,000 damage with Explosives.
Cause 10,000 damage with Melee Weapons.
Cause 10,000 damage with Unarmed weapons.
Heal 10,000 points of damage with food.
Heal 10,000 points of damage with Stimpaks.
Hack 25 terminals.
Complete No Gods, No Masters
Reach 30th level.
Complete Wild Card.
Pick 50 pockets.
Discover all snow globes.
Win 30 games of Caravan.
Win 3 games of Caravan.
Cause 10,000 damage with Energy Weapons.
Install 20 weapon mods.
Get banned from all the Strip's casinos.
Complete The Legend of the Star.
Recruit all companions.
Discover 125 locations.
Complete Return to Sender.
Complete Talent Pool.
Make 50 Speech challenges.
Play 10 spins of Roulette.
Play 10 hands of Blackjack.
Play 10 spins of Slots.
Reach 20th level.
Complete G.I. Blues.
Discover 50 locations.
Complete Volare!
Complete Ring-a-Ding-Ding.
Complete They Went That-a-Way.
Reached 10th level.
Cause 10,000 damage with Guns.
Complete That Lucky Old Sun.
Pick 25 locks.
Complete Come Fly With Me.
Sell 10,000 caps worth of goods.
Repair 30 items.
Recruit any companion.
Craft 20 items.
Complete Ain't That a Kick in the Head.
Play the game from start to finish in Hardcore Mode.
Complete The House Always Wins.
Complete For the Republic.
Complete Render Unto Caesar.
Complete All or Nothing.
Complete Veni, Vidi, Vici.
Complete Eureka!
Complete You'll Know It When It Happens.
Trap Father Elijah in the Sierra Madre's Vault.
Confront Father Elijah in the Sierra Madre's Vault.
Complete the Sierra Madre Gala Event.
Recruit Dean Domino, Christine and Dog.
Collect 500 Sierra Madre Chips.
Crush the White Legs.
Evacuate Zion.
Scout the Zion Valley for signs of the White Legs.
Resupply Daniel and the Sorrows.
Arrive at Zion.
Complete Old World Blues.
Make up your mind... about your brain.
Reactivate all of the Sink's robotic assistants.
Search your feelings... for your heart.
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.
Fully upgraded The Divide's signature weapon.
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) one star (*) Challenges.
Completed any three Gun Runners' Arsenal (GRA) two star (**) Challenges.
Completed any three Gun Runners' Arsenal (GRA) three star (***) Challenges.