Fallout: New Vegas exploits

Exploits are "holes" in the game programming which allow a player to do something which the developers did not intend and alter the play balance in a way which cannot be rectified.

=General considerations=
 * Exploits are repeatable consistently.
 * Exploits are attainable with an unaltered game on an unaltered system. Third-party mods must not be present.
 * Exploits give the player some unintended benefit.

Quest-related

 * When doing the first quest to help the town folk get rid of the gang in town, run to the mine and follow a mine worker to the gang's hideout. The mine worker will kill the gang, and you can loot the bodies. Now, complete the quest by going back to town and activate the final fight. You can loot the bodies a second time.


 * In Camp Golf, accept the quest Flags of Our Foul-Ups from Sgt. McCredie, then go talk to O'Hanrahan and mention helping the squad, he'll ask you to talk to the misfits. Go find Razz, the man with the mohawk, and ask him about his squadmates, as long as you have 40 speech, you can repeat the dialog over and over again for 40xp each time. (CONFIRMED ON XBOX)  -> CHECK THE TUTORIAL ON THIS LINK http://www.youtube.com/watch?v=BqMpyhMQ_f0 <-


 * In the Vegas Strip when you talk to Mr. House you can ask him as often as you want about the "You´re seem more like a computer than a man." Which requires 35 Medicine Skill and always gives you 35xp.


 * During 'That Lucky Old Sun', if the Courier chooses Full Region (Emergency output level), the dialogue option with Ignacio to turn in the quest is not removed upon completion. This allows you to obtain 350 XP, 3 Stimpaks, and 2 Doctor's Bags as many times as you like. After the words "Level Up" appear for the first time the experience will cease to show but it will still make the sound as though you were getting experience. Once you exited out you will not hear the sound or see the experience show up, but you are gaining it all the same. Both statements also apply to the items.(verified on X360)


 * At Aerotech Office Park talk to Captain Parker about Keith. Find Keith in Aerotech Suite 200. With a Barter skill of 45 you can repeat a Barter Check indefinitely for 50 experience each time.


 * In Freeside if you have a speech skill high enough to convince Old Ben to work for James Garret, you may find him sitting at the bar unable to tell Garret that Ben is willing to join, but are able to talk to Ben again and repeatedly turn in the speech challenge quest for 50xp. (confirmed on ps3)

Artificial Un-Intelligence

 * The artificial intelligence governing Deathclaws is unable to correctly determine when a player is within reach.
 * For example, in Quarry Junction, deathclaws do not attack players when they are mounted on the taller rocks or machinery, even when they are in reach. This flaw in the deathclaw AI can be exploited to safely kill the Alpha Male and deathclaw Matriarch even at lower levels. However, when deathclaws are actively pursuing the player onto rocks or machinery, they will recognize the player as within their reach, allowing them to attack.

Barter and Repair Exploitation

 * The infinite money glitch still works! Go to a store that has two identical items with different values. Buy the cheapest, and you should be able to sell it back for more. Repeat. Note: if you have a heavily damaged item that usually costs a lot of caps ( I used a minigun worth 12 caps and sold it to the Gun Runners), sell it to any store that already has that item. Exit the sale screen and dialog, if it is still there you can buy it back. When you buy it back it is fully restored and you can sell it for max price (depending on your barter). Repeat until you clean them out.


 * After the Casino opens in Primm, when you choose to cash your chips in, no chips are removed from your inventory even though you are given currency for the chips. The player can cash chips in indefinitely for an infinite amount of NCR currency, Legion currency, or caps. - Removed in the PC and Xbox 360 Version after patching.


 * In any shop that displays their items out in the open you can pick up the item, take it to a back room, and shut the door. From there you can pocket the item without any people attacking you, go back through the door and sell it back to them. After a while they will display the item again so rinse and repeat. In the Silver Rush in Freeside there is no Karma loss.

Videos
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Karma likes Fire
Flame damage kills do not count against your karma.

Followers
In the middle of battle, talk to your follower. Select the 'Stay at a Distance/Stay Close' option twice. Then exit the companion wheel. When you exit your followers health should be fully restored. (although sometimes it requires the command to be pressed rapidly 4 or 5 times). Works on all versions of the game.

Weapons
Using VATS then simply leaving it when using an Anti-Materiel Rifle loaded with Inc rounds (haven't tested other guns) will cause your target to catch on fire and take damage without causing aggression from friendly NPCs including the one you caught on fire or those watching. Only tested on the PS3 which has currently not seen any patches at the time of this exploit. Confirmed on the 360. - Patched

Energy Weapons challenge easy completion
Using some doors in Freeside, such as the East Gate or shops, will count as an Energy Weapon kill: upon loading of the entered area, a message will appear accounting the killing of an enemy using an Energy Weapon, allowing for easy completiong of Energy Weapons-related challenges, and so achieving the XP you would normally earn upon completion of the challenge. Tested on Xbox 360.

Experience is Power!
In Vault 11, inside the sacrificial chamber, you can access the mainframe in the room to the left after sitting through a presentation by Vault-Tec. Once you access the mainframe, you can repeatedly earn 550xp every time you select the third option and you do not exit the mainframe. Confirmed on Xbox 360, does not work on PS3.