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 Eureka!
Complete For the Republic.
Cause 10,000 damage with Unarmed weapons.
Hack 25 terminals.
Cause 10,000 damage with Explosives.
Cause 10,000 damage with Melee Weapons.
Complete Wild Card.
Complete You'll Know It When It Happens.
Discover 125 locations.
Complete Volare!
Complete That Lucky Old Sun.
Make 50 Speech challenges.
Reach 20th level.
Cause 10,000 damage with Energy Weapons.
Complete G.I. Blues.
Sell 10,000 caps worth of goods.
Repair 30 items.
Discover 50 locations.
Complete Ring-a-Ding-Ding.
Craft 20 items.
Pick 25 locks.
Reached 10th level.
Complete They Went That-a-Way.
Recruit any companion.
Cause 10,000 damage with Guns.
Complete Ain't That a Kick in the Head.
Reach 30th level.
Recruit all companions.
Install 20 weapon mods.
Discover all snow globes.
Heal 10,000 points of damage with Stimpaks.
Pick 50 pockets.
Heal 10,000 points of damage with food.
Win 3 games of Caravan.
Play 10 spins of Slots.
Play 10 spins of Roulette.
Play 10 hands of Blackjack.
Win 30 games of Caravan.
Get banned from all the Strip's casinos.
Play the game from start to finish in Hardcore Mode.
Complete The House Always Wins.
Complete Render Unto Caesar.
Complete All or Nothing.
Complete Veni, Vidi, Vici.
Complete No Gods, No Masters
Complete Come Fly With Me.
Complete Talent Pool.
Complete Return to Sender.
Complete Arizona Killer.
Complete The Legend of the Star.
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.
Trap Father Elijah in the Sierra Madre's Vault.
Arrive at Zion.
Evacuate Zion.
Scout the Zion Valley for signs of the White Legs.
Crush the White Legs.
Resupply Daniel and the Sorrows.
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.
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 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.