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