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