Fallout 2

Note: This trick can only be done on games that havenot been patched to v1.02 or higher. A high Steal attribute andbeing dark helps with this trick. After you have found Vault 15and have gotten rid of Dorian and his people in the vault, checkhis computer and make a holodisk of a spy at the NCR. So, go tothe NCR and go to the presidents office. Once there, talk to theordinary looking man in the outside office and tell him the spyinformation. He will say something and walk off. Proceed to themain room and talk to the man in the tuxedo. Tell him about thespy named F, then show him the holodisk. He will then give you$4000 and you will get 4000 experience points. Now here is thetrick and it helps to have a high steal. Get to the side of himand steal the holodisk back. Then, tell him about the spy andshow him the disk again. You will receive the money and experienceagain. Repeat this process until reaching the desired level. Note:Save often between attempts.

You will need 60% or higher Science. Go to Vault 15 southeast near NCR. Talk to the women who has lost her daughter. Accept her quest and go north. Make sure the girl leaves the place where she blocks a entrance to the north. Talk to the guard in front of the house. Then talk him into letting the girl go or kill him. Once the girl is free, talk to her mother. Go to the house north from the tent. Ask the man for the key and return to the guard (dead or alive). You will notice a door to the left of the guard. Use the key to unlock the door to use the elevator. Get rid of all the guards out there. Go to another elevator on the third level. Kill all the guards out there. Go to the west and you will see a computer. Use it, and Vault 13 will appear on the map.

The guards will not let you into the Vault unless you are a citizen. If you do not want to take the time to get the citizenship papers, go into combat mode then just walk in. This will not cause your karma to lower.

There is an extremely good energy weapon in the Brotherhood Of Steel's San Francisco base. To enter you will have to get the Vertibird plans for them. The weapon is downstairs in one of the lockers. The YK42B pulse rifle does 54-78 damage. Aim and shoot at the eye. It almost always has a good critical hit for approximately 100 to 250 damage (range does not matter) depending on armor. It works well with the Sniper perk, which makes every shot a critical hit if you can make the Luck roll.