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