Fallout 3 cheat codes
From Nexus Wiki
To use cheat codes, you need to access the console. The default console key is tilde (~). Once you are in console mode, you can type the commands below and press ENTER. The quantity can usually be set to whatever you want. I use 100 as an example.
Adds 100 bottle caps (money) to your inventory
player.additem 0000000f 100
Adds 100 Stimpaks to your inventory
player.additem 00015166 100
Enable / Disable God mode
tgm
Enable / Disable no clipping
To go through walls / fly
tcl
Mainly used for clean screenshots
tm
Toggle free camera
To move your camera around. Mainly used for positioning view for screenshots
tfc
Unlock the selected item
Be sure to click on the door / gate / box before typing the command.
unlock
Immediately kill the selected enemy
Be sure to click on the enemy before typing the command.
kill
Configure Dogmeat (your dog companion) to be essential
To not allow it to die.
setessential 6a772 1
Change your character's name
ShowNameMenu
Change your character's gender
SexChange
Display the Character Creation screen
showracemenu
Bring a character/animal back to life
Be sure to click on the person/animal before typing the command.
resurrect
Allow your character to use Power Armor without training for it
SetPCCanUsePowerArmor 1
Adamantium Skeleton perk
Take less damage
Player.AddPerk 00094EC4
Animal Friend perk
Level 1 - Animals will not attack you, Level 2 - Animals help you fight
Player.AddPerk 00031DB5
Better Criticals perk
Increased damage during critical hit
Player.AddPerk 00031DBB
Commando perk
Increased accuracy with 2-handed weapons in VATS
Player.AddPerk 00099828
Comprehension perk
Best used before reading any skill books to give +2 skills
Player.AddPerk 00031DE1
Educated perk
Best when used early in the game - +3 skills each level
Player.AddPerk 00031DD8
Finesse perk
Better chance to score critical hit
Player.AddPerk 00094EC1
Gun Nut perk
Increase Small Guns and Repair - Multiple levels
Player.AddPerk 0004494E
Mister Sandman perk
Sneak and kill people in their sleep
Player.AddPerk 00031DAD
Mysterious Stranger perk
Get occasional help while in VATS
Player.AddPerk 00031DBC
Sniper perk
Chance for Headshots increased
Player.AddPerk 00031DB4
Strong Back perk
Carry more
Player.AddPerk 00031DDE