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Vault-Tec wants you to check up on some...experiments we're running in other Vaults.

Vault-Tec Experiment Review is a weekly overseer quest in Fallout Shelter.


The overseer is tasked with sending Vault dwellers into the Wasteland to explore Vaults in order to uncover the experiments Vault-Tec is performing on the inhabitants. The weapon and outfit rewards for different dialogues are usually Rare but some Legendary items have been reported. The reward may be random or it may scale based on the mission's required dweller level.


Opening dialogue Dweller response Character response Reward
You're too late, Dwellers!

This Vault is full of nothing but ghosts!
Boo! Boooooooooo!

You're not dead, you're just wearing a sheet. No, I'm a ghost! Booooooo! (nothing)
Oh no, a ghost! Uh... We're so scared! What will we do?! Muwhahaha! Take this and run, little Dwellers! 2 Nuka-Cola Quantum
Let's see if ghosts can die twice. Attack!. Ha! You can't hurt us! Wait... Ow!
Fear is the only currency in this Vault.

Tell us something scary, or risk certain doom!

Three words: Never. Ending. Deathclaws. Monstrously horrific! Here. A reward. 2 Nuka-Cola Quantum
You'll all die alone and unloved? Existentially dreadful, but not enough! Die! (attack)
Forget this. We're just going to kill you. Ha! Now that's scary! For YOU!
I am the Overseer. Behold our Vault of horrors!

We trade in fear. A scare is worth more than Caps here.
But we understand if other Vaults trade in less fearsome goods.
What can we send you back with?

Nothing scarier than overwhelming firepower. Ha ha! Here you are. Armor piercing sniper rifle OR
Rusty assault rifle OR
Rusty minigun OR
Plasma rifle OR
Rusty Gauss rifle
We need some spooky clothes. Here. One of my spare outfits. Horror fan outfit
You say you don't need Caps? We're happy to take all of them! Here. Nothing about money scares us. Caps
Any frightful crafting junk in this Vault? May you make something spooky with it. Tri-fold flag OR
Military duct tape
We've been breached!

You can't have our secrets, Dwellers.
Our precious, precious secrets.

Secrets? What secrets? Super-secret secrets, that's what! We'll never talk!
Don't worry. We'll keep your secrets. We were never even here. Yes! Now take this briefcase. This meeting never took place... 2 Nuka-Cola Quantum
We'll beat your secrets out of you! Rogue agents! Code red!
Spying is all we know. All we live for.

Give us intel on your Vault, or else!

Of course. We'll tell you everything! Excellent. You're our double-agents now! 2 Nuka-Cola Quantum
Here's some choice intel: it's underground. You think we're idiots? Get them! (attack)
No one spies on our Vault. Attack! Contact! Kill everyone!
Hello, fellow Dwellers.

I'm the Overseer and Master Spy for this Vault.
Secrets are our trade! But we're happy to give you goods.
What can we send you back with?

Surely you have a secret doomsday weapon you can share? All I have is this, but you're welcome to it. Tuned plasma rifle OR
Enhanced sniper rifle OR
Armor piercing hunting rifle
How about some spiffy spy clothes? This is our uniform. Take one. Agent provocateur
Forget secrets. We only trade in bottlecaps. Fine. Take all you need.
We have some secret crafting projects we need junk for. I like it. Here you are. Giddyup Buttercup OR
Military duct tape
Zounds! Adventurers from some distant land!

Have you come to trade with our fair kingdom?
Or is your goal honorable combat?

You're all ridiculous. Such odd manners of speech! Off with you. (attack)
Huzzah! We are here to trade with you, good knights! Here is the bounty from our last quest. 2 Nuka-Cola Quantum
Face our blades... er... guns! Attack! Have at thee! (attack)
The Code of Chivalry rules here.

Honesty, bravery, and hospitality are our laws.
Do you swear to uphold these virtues while in our castle?

By our honor, we so swear! We dub thee: Knights of the Realm! 2 Nuka-Cola Quantum
News flash: you're in a Vault, not a castle! What nonsense! Away with thee! (attack)
We got your Chivalry right here! Get them! To arms! (attack)
You may bow before the king!

My land is generous, and noble.
You may but name what you seek, and we shall provide it!

We seek weapons to protect our kingdom! And you shall have them. Random weapon depending on quest level
We dig the knight outfits. Can we have one? May this armor protect you from harm. Knight armor
Got any cash, king? The treasures of our land are yours.
Any crafting junk in this land of yours? Our blacksmiths may have something of interest. Here.
Gary? Gary! What's wrong with you? Gary! Gary!
Uh... Gary? Gary, Gary? Gary! 2 Nuka-Cola Quantum
No one calls us Gary! Attack! Gary!
Gary! Gary Gary Gary! We know the answer to this. It's Gary. Gary! 2 Nuka-Cola Quantum
Say something else! Gary!
That's it. You're all dead. Gary!
Gary! Gary Gary!

(He points to a stash of items. Gifts?)

Uh... We'll take the weapon. Gary! Random weapon depending on quest level, including laser rifle and minigun.
That outfit looks nice. Gary! X-01 Mk VI power armor (Fallout Shelter) OR
Greaser outfit
We're all about that sack of bottlecaps. Gary!
That junk looks useful for crafting. Gary!
Place your bets! Place your bets!

Red or black?

Red? Sorry, you lose. Better luck next time!
Black. You're a winner! 2 Nuka-Cola Quantum
We bet on... Death! Kill them! The bets are off and the fix is in!
This Vault is devoted to nothing but Lady Luck herself!

I'm going to draw a card. Guess it right and win a prize!
Guess it wrong... and we just might have to kill you.

Queen of Hearts? Always your best bet! You win. 2 Nuka-Cola Quantum
Ace of spades? Loser!
How about we kill you first? Attack! Looks like the house loses!
What are the odds? Fellow Dwellers!

I'm the Overseer here. Lady Luck is always on my side!
Turns out she's also on your side!
You get one prize of your choice.

We like backing up our luck with weaponry. Critical hit! Rusty railway rifle OR
Enhanced shotgun OR
Enhanced Gauss rifle (lvl 50 party requirement)
We'll roll our fortunes on new clothes. Take my lucky suit! Fancy formal wear
We'll take home our winnings in Caps. Let's cash you out.
We'll take that junk in the prize window. Hey, glad someone finally wants it! Gold watch OR
Yao guai hide OR
Military duct tape
Step into the ring, Dwellers!

Behold our signature move, the Radscorpion Hold!
Let's see your counter-move!

We prefer boxing to wrestling. Sorry. What kind of talk is that? Out of the ring!
You'll never defeat... The Deathclaw Dive! Oh no! Such an awesome move! We're done for! 2 Nuka-Cola Quantum
Our counter-move is we kill all of you! No holds barred!
All disputes in this Vault are solved by wrestling!

You want to stay, you need an awesome wrestling name!

We are... The Vault Vigilantes! A fearsome name to shake the ring for years to come! 2 Nuka-Cola Quantum
Our team name is... The Only Ones Who Aren't Idiots. Mocking the ring? Time to knock you down for the count!
This is dumb, and we're going to murder you. Time to clean up your act!
I am the undisputed Heavy Weight Champion!

As Overseer of this Vault, the people look to me!
And I am here to give back to all wrestling fans!

Got any weapons we can take? Weapons are banned in the ring... But yeah, of course! Enhanced shotgun OR
Hardened Gauss rifle
How about a wrestler outfit of our very own? Oh yeah! Wrestler outfit
Care to share some Caps? Here. From my last match.
You guys don't have any junk for crafting, do you? As it so happens, I have this. It's yours!

Quest stages

1 Travel
2Quest finishedTalk to the Vault Dwellers.

Behind the scenes


Single-stage quests
Main questsA Gathering of Ghouls · A Pale Imitation · A Poorly Thought-Out Plan · Against the Odds · Animal Rescue · Argh, Matey! · Arms Race · Beware of Over-dog! · Burnout · Can't Stop the Signal · Captured Critter · Choo-Choo! · Collector's Edition · CoveWatch! · Death and Denial · Den of Thieves · Diplomatic Mission! · Divide and Conquer · Dog Gone · Dog Shelter · Firestarter · Game of Vaults · Getting Started · Ghooooooooooooooooooul! · Honeymoon Horror · Hostage Negotiations · Hot Tub Slime Machine · Humans Like Us · Little Miss Wasteland · Little Red Radium Hood · Mall Madness · Monday Night Brawl · Monster Under the Bed · My Metal Pony · My Weird Science Project · Out of the Vault, Into the Shadows · Overwhelming Force · Queen of the Deathclaws! · Radiation Leak! · Raiding Party · Reign of Radroach Rodney! · Revenge of the Geeks · Robot Retrieval · Scientific Progress · Shotgun Wedding · Signal Failure · Take Me out to the Ball Game · Target Practice · The Abyss · The Brothers Grime · The Cat Burglar · The De-Buggers · The Scorpion... King? · The Secret of [REDACTED] · Time to Wake Up! · Too Good to Be True · War of the Nerds · Wasteland Doctoring · Wasteland: The Musical · Wedding Crashers · Wonders of Nature · Wonders of Science · Wonders of Technology
Daily questsBounty: 'Ol One-Eye · Bounty: Bash · Bounty: Butcher · Bounty: Shiner · Bounty: Snips · Bounty: Yak · Caps Run · Duo of Destruction: Alpha Deathclaws · Duo of Destruction: Glowing One (x2!) · Duo of Destruction: Glowing Radroaches · Duo of Destruction: Glowing Radscorpions · Duo of Destruction: Mole Rat Brood Mothers · Friendly Settlement! · Guardian of the Wastes: Deathclaws! · Guardian of the Wastes: Feral Ghouls! · Guardian of the Wastes: Mole Rats! · Guardian of the Wastes: Radroaches! · Guardian of the Wastes: Radscorpions! · Junk Run · Lunchbox Run · Nuka-Cola Quantum Run · Outfit Run · Rescue Operation · Science Cooperative! · Spelun-King Training · Spy on Raiders! · Weapons Run
Weekly questsGame Show Gauntlet · Vault-Tec Experiment Review
Limited time questsGhostly Gag · Horror Movie Night! · The Door Buster · The Haunting of Mass Chemical · The Spirit of Taking · To Grandmother's House We Go · Who's Carving the Turkey?
Special questsFactory Floor of Fear · The Mystery of Vault 666  · Vault 789 · Welcome to Paradise · With Friends Like These
Random questsA Cry for Help · A Nice Ghoul Like You · Anybody Home? · Big Trouble · Cabin Fever · Cabin Without the Woods · Clean-Up on Aisle Five · Crossing Paths · Dibs at the Red Rocket · Express Checkout · Family Matters · Fashion Statement · Food Fight! · Gas 'N Go · Get in Line · Hop on the Roach Coach · Infested! · Misery Loathes Company · One Ghoul Customer · Party Crasher · Pest Control · Pest-Case Scenario · Pit Stop · Post-Apocalyptic World Problems · Super-Duper Trooper · The Scenic Route · Uninvited Guests · Wasteland Getaway
Multi-stage questlines
A Settler Needs Your HelpFollowing His First Steps · Raider Troubles at Corvega · When Preston Calls · Kidnapping at Vault 778 · A Settler Needs Your Help
A Wasteland TailSOS! · Canine Recovery · Vault 199 · In Another Vault · The Tail Continues · No Time for Paws
Almost HumanOff the Rails · Synth in a Pinch · Not-so-Safehouse · Synths for Sale
Climbing the RanksClearing a Path · Taking out the Trash · Heat of the Knight · In Shining Armor
Detective Case FilesThe Case of the Captured Canine · The Case of the Missing Mitt · The Case of the Quantum Creeper · The Case of the Lost Lunch · The Bigsby Brown Case
Echoes of SteelHave Gun, Will Travel · Toy Soldiers · No Stone Unturned · Slash and Burn · Mission of Mercy · The Final Push
Food, Glowrious FoodAll Sales Final · Thyme is Money · Cheese, Please! · The Yolk's on You · High Steaks · The Towering Il Forno · By Hook or by Cook
Horsemen of the Post-Apocalypse Part 1Radroach Roundup · Undercover Operations · Dogs of War · Springing the Trap · Beat Reporting · Matters to Settle
Horsemen of the Post-Apocalypse Part 2Parley Time · Crime Scene Investigation · Death Revealed? · Give me Liberty and/or Death · Operation: Sandman · Release the Raiders!
Horsemen of the Post-Apocalypse Part 3Set 'em Up: Pestilence · Set 'em Up: Famine · Run, Three Dog, Run! · Knock 'Em Down · At Death's Door · Just Deserts
Journey to the Center of VaultopolisThe Path of Paula Plumbkin · A Thirst for Adventure · Paula's in a Pickle! · Into Vault 333! · Tankbusting · Return to Vault 333 · Truth Among the Ashes · Overrun · Powered Up! · The Road to Vaultopolis · The Vault-Tec Vantage · The Quest for Vault 525 · Playing Politics · The Red Rocket Reveal! · Vaultopolis Awaits!
Secret Agent PersonLive Dead Drop · The Infiltration Game · Secret Weapon Test · Sabotage! · Dart of Harkness · Extreme Prejudice
The Great Tato FamineThe Mysterious Disappearing Spuds · The Spreading Blight · The Night Watch · Spear Fishing · The Shadow Wolf · The Mole Rat Man
The Search for Jobinson's Jersey!Man on First · Man on Second · Man on Third · Time for a Grand Slam? · Worst. Coach. Ever. · Picked off at Second! · Seventh Inning Stretch · Getcha' Peanuts Here! · Last Inning! Or not... · There's no Crying in Baseball! · Runners in Scoring Position! · Conference on the Mound · Here's the Pitch... · Homerun! · Here's to You, Rackie Jobinson
The Thrill of the HuntBug Hunt · Whack-a-Mole · Aim for the Head! · Rock Them Like a Hurricane · The Most Dangerous Game · 12-Point Buck · The Final Hunt
The Wizard of WaterFons Vivus · Our Cups Runneth Over... WITH FAILURE · Half Full, Half Empty · Water into Brine · Aqua Nuka-Cola · Aqua-schema · The Reluctant Shill · Snake Water
When Irish Eyes are GlowingShamrock the Casbah · Driving the Snakes Out · The End of the Rainbow · It's Not Easy Being Green · The Banshee's Keen
Zines from the CommonwealthBroadsides · Headshots · A Map to the Stars · The (Thinly Veiled) Plot Thickens · Collateral Murder · Boogie Woogie Bugle Boy · Stop the Presses!
Limited time multi-stage questlines
Labor Dispute!Power to the People? · No Rest for the Wicked · All Work and No Play · Working Overtime · Rubarb's Reckoning
Nabbed from Nuka-WorldBottlecap Blues · In Hot Pursuit · Playing Catch-up · Pet Peeve · A Refreshing Rescue
No Thanks for the Gobbler!Gobble Gobbler! · A Delicious Trail of Danger! · The Last Gobble!
Springtime for AtomThe Rite of Spr(ay)ing · Spring Forward, Fall Back · E-Ster is Coming · The Sixth Sun · E-Ster Egg Hunt · Saving Daylight
The Book of WuvAll's Fair in Love and Nuclear War · This Golden Ring · A Labor of Love · Groom for Doubt
The Gridiron GangFirst Down · Second-Stringers · Third and Goal
The Mystery of Vault 31Halloween (Non)Fiction · Go West · Days Gone Bye · Mask Hysteria · Scare Tactics
The Party at the End of the WorldBlackout · A Special Brand · Walk of Shame · Jack Ain't Back · Human Bean Juice · KHAAANNNNN!!!!
Vault-Tec Saves Christmas!Santa's Helpers · Christmas at the Raider Camp · Cheer for the Ghouls · Rescue Santa!