Lock

Locks are found throughout the wasteland on doors, safes and boxes. In Fallout 3, Fallout: New Vegas, Fallout 4 and Fallout 76, the player character can use their Lockpick skill to pick a lock using bobby pins. Some can also be unlocked with keys.

Background
Instead of a mini-game, a lockpick skill roll will take place every time the skill is used on a door or a container. A successful roll will open the lock, failure will not. A critical failure will either break the lockpicks or jam the lock itself, rendering it unavailable until the next day.
 * Fallout, Fallout 2 and Fallout Tactics: Brotherhood of Steel

The Lockpick skill can be used on unlocked doors and containers as well, and locking them will give the same amount of experience as unlocking a locked one (25 XP). Note that each door or container can only give experience once via lockpicking.

Characteristics

 * Fallout 3, Fallout: New Vegas, Fallout 4 and Fallout 76

Fallout 3 and Fallout: New Vegas
Locks come in five difficulties: Very Easy, Easy, Average, Hard, and Very Hard. Which locks can be picked depends on one's Lockpick skill (see the table to the right). Difficulty and the Lockpick skill also determine the probability of success for an attempt to force a lock open.

Force lock
It is also possible to skip the mini-game by attempting to force a lock open. The probability of success for this action depends on the Lockpick skill and the difficulty of the lock. This is far less reliable than the mini-game, as the only combination which has a 100% success rate is a Very Easy lock with a Lockpick skill of 90-100; every other combination will have a smaller percentage.

Failing to force the lock open it will break it, and no other attempt at opening it can be made without the Infiltrator perk (which grants a second attempt) or the appropriate key.

Fallout 4 and Fallout 76
Locks come in four difficulties: Novice, Advanced, Expert, and Master. Which locks can be picked depends on one's Locksmith or Picklock skill (see the table to the right).

Experience points
Depending on its difficulty (harder locks reward more XP), successfully opening a lock grants an amount of XP. Without any XP reward-increasing perks, each level rewards the lockpicker with the XP shown in the tables above.

Picking a lock
To pick a lock, the player character must have a Lockpick skill high enough for the difficulty of the lock and possess one or more bobby pins. Bobby pins are weightless items, often found in first aid kits and locked containers.

If the conditions are met, a mini-game is activated. A bobby pin and screwdriver (a free, weightless item which does not appear in the inventory) are inserted into the keyhole of the lock. The lockpicker attempts to find the correct position for the pin, which is checked by turning the screwdriver as if it were a key. The further the screwdriver turns the lock, the closer the pin is to the correct position. Once the screwdriver can turn the lock a full 90 degrees, the lock opens.

The basic premise is complicated by several factors. If the lockpicker fails to determine the correct position of the lock too many times, the bobby pin will break, forcing them to use another to continue the attempt. The number of times it takes for a pin to break varies, as placing too much force on the screwdriver will cause it to break faster than a light touch. The integrity of the pin can be roughly tracked by how violently it shakes on a failed attempt. When it is about to break, it will bounce out of the center position. The mini-game can be exited and restarted which will prevent the pin from breaking, but this will also reset the correct position for the pin. Also, the difficulty level of the lock determines how accurately the bobby pin must be placed and how easy the pin is to break. A Very Easy lock needs little to no pin adjustment for a successful attempt, in turn making the likelihood of breaking a pin low. Conversely, a Very Hard lock requires extremely precise placement, and thus the repeated checks to find the correct position will wear out a pin quickly.

In the Fallout 4 add-on Automatron, the player character can modify robots with the lockpick module, giving them the ability to open locked doors and containers.

Controls for PCs
The bobby pin is moved with the mouse in a semi-circle around the top of the lock. The screwdriver is moved by tapping any movement key.

Controls for consoles and joypads
The bobby pin is moved with one analog stick and the screwdriver with the other. The controller will vibrate with the wiggling of the bobby pin, and vibrate strongly as it starts to break.

List of locks

 * Fallout 3


 * Fallout: New Vegas


 * Fallout 4


 * Fallout 76

Behind the scenes
In real life, lockpicking is accomplished by a torque wrench (screwdriver) and a pick (bobby pin), but the act of actually picking the lock is nothing like what a pin tumbler lock or most other locks with a cylindrical design would require to successfully manipulate the lock. The torque wrench is used to apply rotation to the cylinder, while the pick is used to carefully push each tumbler in the appropriate distance; the pick is not rotated around the lock's axis.

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