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 All or Nothing.
Complete The House Always Wins.
Hack 25 terminals.
Reach 30th level.
Craft 20 items.
Complete You'll Know It When It Happens.
Recruit all companions.
Complete G.I. Blues.
Discover 125 locations.
Complete Volare!
Complete Return to Sender.
Reach 20th level.
Complete The Legend of the Star.
Play 10 spins of Slots.
Make 50 Speech challenges.
Complete Ring-a-Ding-Ding.
Play 10 hands of Blackjack.
Sell 10,000 caps worth of goods.
Discover 50 locations.
Reached 10th level.
Complete They Went That-a-Way.
Complete That Lucky Old Sun.
Complete Come Fly With Me.
Cause 10,000 damage with Guns.
Pick 25 locks.
Repair 30 items.
Recruit any companion.
Complete Ain't That a Kick in the Head.
Install 20 weapon mods.
Discover all snow globes.
Cause 10,000 damage with Energy Weapons.
Cause 10,000 damage with Explosives.
Heal 10,000 points of damage with Stimpaks.
Cause 10,000 damage with Melee Weapons.
Pick 50 pockets.
Heal 10,000 points of damage with food.
Cause 10,000 damage with Unarmed weapons.
Win 3 games of Caravan.
Play 10 spins of Roulette.
Win 30 games of Caravan.
Get banned from all the Strip's casinos.
Play the game from start to finish in Hardcore Mode.
Complete For the Republic.
Complete Render Unto Caesar.
Complete Wild Card.
Complete Veni, Vidi, Vici.
Complete Eureka!
Complete No Gods, No Masters
Complete Talent Pool.
Complete Arizona Killer.
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.
Scout the Zion Valley for signs of the White Legs.
Resupply Daniel and the Sorrows.
Arrive at Zion.
Evacuate Zion.
Complete Old World Blues.
Make up your mind... about your brain.
Search your feelings... for your heart.
Reactivate all of the Sink's robotic assistants.
Recovered X-8 vertebrae-pulse-de-sensitizer frequency!
Completed Lonesome Road.
Decided the fate of all the Divide dwellers.
Found all of ED-E's upgrades in the Divide.
Fully upgraded The Divide's signature weapon.
Detonated all of the warheads in the Divide.
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) one star (*) Challenges.
Completed any three Gun Runners' Arsenal (GRA) two star (**) Challenges.
Completed any three Gun Runners' Arsenal (GRA) three star (***) Challenges.