Fallout 3 Perks

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In Fallout 3 you can pick a new perk every time you level up, however each perk can only be obtained if you meet the level requirement and some perks require a certain amount of points for a skill or S.P.E.C.I.A.L attribute.

Regular perks

Name	Level Req	Other Requirements	Ranks	Game Description
Action Boy/Girl	16	Agility 6	1	With the Action Boy/Girl perk, you gain an additional 25 Action Points to use in V.A.T.S..
Adamantium Skeleton	14		1	With the Adamantium Skeleton perk, your limbs only receive 50% of the damage they normally would.
Animal Friend	10	Charisma 6	2	At the first rank of this perk, animals simply won't attack. At the second rank, they will eventually come to your aid in combat, but never against another animal. This perk affects the Dog, Yao Guai, Mole Rat, and Brahmin.
Better Criticals	16	Perception 6 Luck 6	1	With the Better Criticals perk, you gain a 50% damage bonus every time a critical hit is scored on an opponent.
Bloody Mess	6		1	With the Bloody Mess perk, characters and creatures you kill will often explode into a red, gut-ridden, eyeball-strewn paste. Fun! Oh, and you'll do 5% extra damage with all weapons.
Cannibal	12		1	With the Cannibal perk, when you're in Sneak mode, you gain the option to eat a corpse to regain Health. But every time you feed, you lose Karma, and if the act is witnessed, it is considered a crime against nature.
Chem Resistant	16	Medicine 60	1	Having the Chem Resistant perk means you're 50% less likely to develop an addiction to chems, like Psycho or Jet.
Chemist	14	Medicine 60	1	With the Chemist perk, any chems you take last twice as long.
Child at Heart	4	Charisma 4	1	The Child at Heart perk greatly improves your interactions with children, usually in the form of unique dialogue choices.
Commando	8		1	While using a rifle (or similar two-handed weapon), your accuracy in V.A.T.S. is significantly increased.
Comprehension	4	Intelligence 4	1	With the Comprehension perk, you gain one additional skill point whenever a skill book is read.
Computer Whiz	18	Intelligence 7 Science 70	1	Fail a hack attempt and get locked out of a computer? Not if you're a Computer Whiz! With this perk, you can attempt to re-hack any computer you were previously locked out of.
Concentrated Fire	18	Small Guns 60 Energy Weapons 60	1	With Concentrated Fire, your accuracy to hit any body part in V.A.T.S. increase slightly with each subsequent hit on that body part.
Contract Killer	14		1	Once you have the Contract Killer perk, any good character you kill will have an ear on their corpse. This ear can then be sold to a certain person (whose identity is disclosed when you take the perk) for caps and negative Karma.
Cyborg	14	Medicine 60 Science 60	1	You've made permanent enhancements to your body! The Cyborg perk instantly adds +10% to your Damage, Poison, and Radiation Resistances, and 10 points to the Energy Weapons skill.
Daddy's Boy/Girl	2	Intelligence 4	3	Just like dear ol' Dad, you've devoted your time to intellectual pursuits. You gain an additional 5 points to both the Science and Medicine skills.
Demolition Expert	6	Explosives 50	3	With each rank of this perk, all of your explosive weapons do an additional 20% damage.
Educated	4	Intelligence 4	1	With the Educated perk, you gain three more skill points every time you advance in level. This perk is best taken early on, to maximize its effectiveness.
Entomologist	4	Intelligence 4 Science 40	1	With the Entomologist perk, you do an additional +50% damage every time you attack a mutated insect, like the Radroach, Giant Ant, or Radscorpion.
Explorer	20		1	When you choose the Explorer perk, every location in the world is revealed on your map. So get out there and explore!
Fast Metabolism	12		1	With the Fast Metabolism perk, you gain a 20% Health bonus when using Stimpaks.
Finesse	10		1	With the Finesse perk, you have a higher chance to score a critical hit on an opponent in combat, equivalent to 5 extra points of Luck.
Fortune Finder	6	Luck 5	1	With the Fortune Finder perk, you'll find considerably more Nuka-Cola caps in containers than you normally would.
Grim Reaper's Sprint	20		1	If you kill a target in V.A.T.S., all your Action Points are restored upon exiting V.A.T.S..
Gun Nut	2	Intelligence 4 Agility 4	3	You're obsessed with using and maintaining a wide variety of conventional firearms. With each rank of the Gun Nut perk, you gain an additional 5 points to the Small Guns and Repair skills.
Gunslinger	6		1	While using a pistol (or similar one-handed weapon), your accuracy in V.A.T.S. is significantly increased.
Here and Now	10		1	The Here and Now perk immediately grants an additional experience level, complete with all the advantages that brings.
Impartial Mediation	8	Charisma 5	1	With the Impartial Mediation perk, you gain an extra 30 points to Speech... so long as you maintain a Neutral Karma level.
Infiltrator	18	Perception 7 Lockpick 70	1	With Infiltrator, if a lock is broken, and can't normally be picked again, you can attempt to pick it again one more time. This includes locks previously broken by a "Force Lock" attempt.
Intense Training	2		10	With the Intense Training perk, you can put a single point into any of your S.P.E.C.I.A.L. attributes.
Iron Fist	4	Strength 3	3	With the Iron Fist perk, you do an additional 5 points of Unarmed damage perk rank.
Lady Killer/Black Widow	2		1	You do +10% damage against opponents of the opposite sex. You'll sometimes have access to unique dialogue options when dealing with the opposite sex.
Lead Belly	6	Endurance 5	1	With the Lead Belly perk, you take 50% less radiation every time you drink from an irradiated water source.
Lawbringer	14		1	Once you have the Lawbringer perk, any evil character you kill will have a finger on their corpse. This finger can then be sold to a certain person (whose identity is disclosed when you take the perk) for caps and positive Karma.
Life Giver	12	Endurance 6	1	With the Life Giver perk, you gain an additional 30 hit points.
Light Step	14	Perception 6 Agility 6	1	With the Light Step perk, you'll never set off an enemy's mines or floor-based traps.
Little Leaguer	2	Strength 4	3	Years as the Vault little league MVP have honed your hitting and throwing. With every rank, you gain 5 points of Melee Weapons skill and 5 points of Explosives skill.
Master Trader	14	Charisma 6 Barter 60	1	When you take the Master Trader perk, the price of every item you buy from a vendor is reduced by 25%.
Mister Sandman	10	Sneak 60	1	With the Mister Sandman perk, when you're in Sneak mode, you gain the option to silently kill any human or ghoul while they're sleeping. And, all Mister Sandman kills earn bonus XP.
Mysterious Stranger	10	Luck 6	1	You've gained your own personal guardian angel... armed with a fully loaded .44 Magnum. With this perk, the Mysterious Stranger will appear occasionally in V.A.T.S. mode to lend a hand, with deadly efficiency.
Nerd Rage!	10	Science 50 Endurance 5	1	You've been pushed around long enough! With the Nerd Rage! perk, your Strength is raised to 10 and you gain 50% to damage resistance whenever your Health drops to 20% or below.
Night Person	10		1	When the sun is down, a Night Person gains +2 to both Intelligence and Perception (up to a maximum of 10). This perk directly affects your "internal clock", and remains active both inside and outside.
Ninja	20	Melee Weapons 80 Sneak 80	1	The Ninja perk grants you the power of the fabled shadow warriors. When attacking with either Melee or Unarmed, you gain a +15% critical chance on every strike. Sneak attack criticals do 25% more damage than normal.
Paralyzing Palm	18	Unarmed 70	1	With Paralyzing Palm, you will sometimes perform a special V.A.T.S. palm strike that paralyzes your opponent for 30 seconds. Note that in order to perform the Paralyzing Palm, you must be completely unarmed.
Pyromaniac	12	Explosives 60	1	With the Pyromaniac perk, you do +50% damage with fire-based weapons, like the Flamer and Shishkebab.
Rad Resistance	8	Endurance 5	1	Rad Resistance allows you to -- what else? -- resist radiation. This perk grants an additional 25% to Radiation Resistance.
Robotics Expert	12	Science 50	1	With the Robotics Expert perk, you do an additional 25% damage to any robot. But, even better, sneaking up on a hostile robot undetected and activating it will put that robot into a permanent shutdown state.
Scoundrel	4	Charisma 4	3	Take the Scoundrel perk, and you can use your wily charms to influence people - - each rank raises your Speech and Barter skills by 5 points.
Scrounger	8	Luck 5	1	With the Scrounger perk, you'll find considerably more ammunition in containers than you normally would.
Silent Running	12	Agility 6 Sneak 50	1	With the Silent Running perk, you gain an additional 10 points to Sneak, and running no longer factors into a successful sneak attempt.
Size Matters	8	Endurance 5	3	You're obsessed with really big weapons. With each rank of this perk, you gain an additional 15 points to the Big Guns Skill.
Sniper	12	Agility 6 Perception 6	1	With the Sniper perk, your chance to hit an opponent's head in V.A.T.S. is significantly increased.
Solar Powered	20	Endurance 7	1	With the Solar Powered perk, you gain an additional 2 points to Strength when in direct sunlight, and slowly regenerate lost health.
Strong Back	8	Strength 5 Endurance 5	1	With the Strong Back perk, you can carry 50 more pounds of equipment.
Swift Learner	2	Intelligence 4	3	With each rank in the Swift Learner perk, you gain an additional 10% of total Experience Points whenever Experience Points are earned.
Tag!	16		1	The Tag! perk allows you to select a fourth Skill to be a Tag Skill, which instantly raises it by 15 points.
Thief	2	Agility 4 Perception 4	3	With each rank of the Thief perk, you gain an immediate bonus 5 points to both Sneak and Lockpick skills.
Toughness	6	Endurance 5	1	With the Toughness perk, you gain +10% to overall Damage Resistance, up to the maximum of 85%.

Quest Perks

Some perks can only be obtained by completing a mission in a certain way.

Name	Requirements	Description
Ant Might	Mutation by Doctor Lesko's ant serum	+1 Strength and +25% fire resistance.
Ant Sight	Mutation by Doctor Lesko's ant serum	+1 Perception and +25% fire resistance.
Barkskin	Oasis quest - Kill Harold	You gain a permanent +5% to Damage Resistance.
Dream Crusher	Talk Moira Brown out of writing The Wasteland Survival Guide.	Reduces an enemy's chance to critically hit you by 50%.
Hematophage	Blood Ties quest: Talk to Vance about being a vampire.	Blood Packs heal 20 Hit Points instead of 1 point.
Power Armor Training	Learned from the Brotherhood of Steel	You won't be able to use a suit of Power Armor without this perk.
Rad Regeneration	Help Moira Brown with The Wasteland Survival Guide by gaining 600 rads when she asks.	With the Rad Regeneration perk, any crippled limbs will regenerate themselves when exposed to a certain level of radiation. (At least 400 rads of radiation is required for this to work)
Survivor (Junior / Expert / Guru)	Help Moira Brown finish The Wasteland Survival Guide by completing the final chapter.	You gain a +6% bonus to Poison Resistance and Radiation Resistance and either additional Crit %, Additional Damage Resistance, or 6 points to both the Medicine and Science or Sneak and Speech.
Wired Reflexes	Side with Dr. Zimmer in the quest The Replicated Man.	Advanced technology from the Commonwealth has increased your reaction speed, giving you a 10% higher chance to hit in V.A.T.S.

DLC Perks

Name	Level req	Other requirements	Ranks	Description
Almost Perfect	30		1	All S.P.E.C.I.A.L stats will be raised to 9.
Deep Sleep	22		1	You will get the Well Rested 10% XP bonus no matter what bed you sleep in.
Devil's Highway	24	Good or Neutral Karma	1	Karma is instantly set to Very Evil.
Escalator to Heaven	24	Bad or Neutral Karma	1	Karma is instantly set to Very Good.
Karmic Rebalance	24	Bad or Good Karma	1	Karma is instantly set to Neutral.
Nerves of Steel	26	Agility 7	1	Action Points regenerate faster.
No Weaknesses	24		1	All your S.P.E.C.I.A.L stats that are lower than 5 become 5.
Nuclear Anomaly	30		1	Your body will unleash a devastating nuclear explosion whenever your Hit Points are reduced to 20% or less.
Party Boy	28		1	You no longer suffer the withdrawl effect from alcohol addiction.
Puppies!	22		1	Whenever Dogmeat dies, a new dog will appear at Vault 101 a few days later.
Rad Absorption	28	Endurance 7	1	Radiation level slowly decreases automatically over time.
Rad Tolerance	26	Endurance 7	1	Your body in unaffected by minor radiation poisoning.
Quantum Chemist	22	Science 70	1	Every 10 Nuka-Colas you find can be converted into a Nuka-Cola Quantum
Warmonger	26	Intelligence 7	1	Automatically gives you all three Schematics for each custom built weapon.

DLC Quest Perks

Name	DLC	Requirements	Description
Covert Ops	Operation: Anchorage	Gather 10 Intel Suitcases	+3 Science, +3 Small Guns and +3 Lockpick
Auto Axpert	The Pitt	Collect 10 Steel Ingots in the Steel Yard.	+25% Damage when using the Auto Axe
Booster Shot	The Pitt	Complete Free Labor	Radiation Resistance +10%
Pitt Fighter	The Pitt	Defeat everyone in The Hole.	+3 Radiation Resistance and +3% Damage Resistance
Punga Power!	Point Lookout	Complete Walking with Spirits	Better radiation recovery from eating Punga Fruit
Ghoul Ecology	Point Lookout	Read Plik's Journal	+5 damage to Ghouls
Superior Defender	Point Lookout	Complete The Local Flavor	+5 damage and +10 armor when standing still.
Xenotech Expert	Mothership Zeta	Complete the "Shooting Range" within the Weapons Lab.	+20% damage increase when using Alien Weapons.