Maybe you were bad once, but you ain't like that now. Your Karma has been reset to 0, you regenerate AP 25% faster, and your attack speed is increased by 20%. You are also immune to Critical Hits.
You've learned to keep your senses alert to any danger. When crouched and not moving you gain a +2 to your Perception attribute to help you find enemies before they find you.
At the first rank of this perk, animals simply won't attack. At the second rank, they will actually come to your aid in combat, but never against another animal.
With the Atomic! perk, you are 25% faster and stronger whenever you're basking in the warm glow of radiation. Outside irradiated areas, your Action Points (AP) regenerate faster and faster the higher your level of radiation sickness becomes.
Run speed and attack speed x1.25, +2 STR, +2 DT while being irradiated
Your brain is back in your body, but some of the advanced technologies remain: Your head still cannot be crippled, but you are only 10% more resistant to addiction now. Surprisingly your Damage Threshold has improved by 10% (minimum +1 DT)
In combat, you do +10% damage against male opponents. Outside of combat, you'll sometimes have access to unique dialogue options when dealing with the opposite sex.
+10% damage against male opponents
Additional dialogue options with certain male characters
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% more damage with all weapons.
Your brain has been replaced with advanced technologies: Your head can no longer be crippled and is resistant to chem addiction (+25% resistance) and shock from bodily damage (+5% Damage Threshold, minimum +1).
You're so sneaky that you can sneak even with your Pip-Boy light on! Any time the Pip-Boy light is on, you gain a sneak bonus to offset the light's sneak penalty.
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.
Your heart is back in your body, but some advanced technologies remain: You are more resistant to poison (50%) and robots are only somewhat confused by you (25% less likely to score a critical hit) now. But on the bright side, healing items (chems) are even more effective!
+50% to poison resistance
-25% chance to get critical hits from robots, and bonus healing with certain items.
You don't fool around with fancy trick shots. Straight to the midsection and down they go. In V.A.T.S., you do an additional 15% damage with attacks targeting the torso.
In V.A.T.S.
you do an additional 15% damage when targeting the torso.
Your knowledge of robotic components allows you to break them more easily and salvage their mechanical corpses. You have a +25% chance to score critical hits against robots, and you'll also find more useful components on robots you destroy.
More loot on robots destroyed by the player and potential +1% critical hit chance to robots
In combat, you do +10% damage against female opponents. Outside of combat, you'll sometimes have access to unique dialogue options when dealing with the same sex.
+10% damage against female opponents
Additional dialogue options with homosexual female characters
You've learned the recipe to make slugs for the Vending Machines out of Scrap Metal and the acid from Fission Batteries. Craft them at the Workbench and spend them just like Chips!
Fail a hack attempt and get locked out of a computer? Not if you're a computer whiz! With this perk, you get a second chance at any computer you were previously locked out of.
Another attempt to hack any computer you were previously locked out of
In combat, you do +10% damage against male opponents. Outside of combat, you'll sometimes have access to unique dialogue options when dealing with the same sex.
+10% damage against male opponents
Additional dialogue options with homosexual male characters and certain female characters
You've done enough chems to know how to hang on to the effects just a while longer. More specifically, ingested chems last 33% longer than they normally would.
It is the burden of the dead to remind the living of what they have lost... You can put a single point into any of your SPECIAL attributes, and you also gain reputation with the Boomers and the Powder Gangers for your... destructive tendencies, but you lose reputation with the NCR and Caesar's Legion.
The Divide broke cities, flayed skin from bone and threatened to destroy the world, but you survived it - and stopped it. You can put a single point into any of your SPECIAL attributes, and you also gain reputation with the Followers of the Apocalypse and the Brotherhood of Steel for stopping another Armageddon.
+1 SPECIAL point
Brotherhood of Steel and Followers of the Apocalypse fame
With the Educated perk, you gain two more skill points every time you advance in level. This perk is best taken early on, to maximize its effectiveness.
Veronica has received the Elijah's Last Words perk.
She has learned a secret Melee Weapon technique that increases her attack speed by 150% and gives her a 25% chance to knock down enemies.
+150% melee attack speed
25% chance for melee attacks to knock down enemies for Veronica
Elijah obviously intended this to go to Veronica, but you earned it, right?
You've learned Elijah's secret Melee Weapon technique and your Critical Hits now do 150% more damage.
While ED-E is a companion, the player can detect enemies at an increased range. Additionally, enemies will appear on the player's compass and can be targeted in V.A.T.S. even when cloaked.
The power of your personality inspires die-hard loyalty from your followers. When you drop below 50% health, your companions temporarily gain much greater resistance to damage.
When your HP drops below 50%
Companions gain much greater resistance to damage.
You've had enough of the so-called "authorities" pushing poor folks around! You gain +2 Damage Threshold and +5% Critical Chance against anyone wearing the faction armor of the NCR, Legion, or Brotherhood.
+2 Damage Threshold and +5% Critical Chance against any non-player character wearing NCR, Legion, or Brotherhood of Steel faction armor
With Ghastly Scavenger, when you're in Sneak mode, you gain the option to eat a Super Mutant or Feral Ghoul corpse to regain Health. Every time you feed, you lose Karma, and if the act is witnessed, it is considered a crime against nature.
Regain Health by feeding on super mutant or feral ghoul corpses
Just good, honest infantry work! You do 25% more damage with 9mm and .45 Auto pistols and SMGs, service rifles, assault and marksman carbines, light machine guns, frag grenades, grenade rifles and launchers, and combat knives.
25% more damage with 9mm and .45 Auto pistols and SMGs, service rifles, Assault and Marksman carbines, light machine guns, frag grenades, grenade rifles and launchers, and combat knives
You know your way around a reloading bench and don't let good brass and hulls go to waste. When you use Guns, you are more likely to recover cases and hulls. You also have all hand load recipes unlocked at any of the wasteland's reloading benches.
Your heart has been replaced with advanced technologies: You cannot be poisoned, and filters in your heart will also regulate bleeding and healing, allowing all healing items (chems) to function at a higher level. Robots are now confused by you and 50% less likely to score a critical hit.
Poison immunity
-50% chance to get critically hit by robots, and minor bonus healing with certain items.
Have you been working out? Weapons heavier than 10 lbs. now weigh half as much for you. (Modified weapons that drop below 10 lbs. will not gain this benefit.)
Halved weapon weight when the weapon is over 10 Pounds.
Your extensive familiarity with Explosives allows you to ignore a portion of their damage. Your Damage Threshold is increased by 25 against any and all Explosives -- even your own.
Implant C-13 was originally designed as a defense turret subroutine to help eliminate cazadores should they escape from their containment, but it's been repurposed for testing on human subjects.
You gain a non-addictive subdermal Turbo (chem) injector. This perk may be taken twice, with the second rank increasing the effect from 2 to 3 seconds and the uses per day from 5 to 10.
You can be made... better... faster... stronger... Actually, just faster. The M-5 implant increases your crouched movement speed by 20% for greater efficiency as a test subject.