S.P.E.C.I.A.L Stats in the Wasteland

This guide was originally created in 2017 when Fallout Shelter released on Steam.
Since then, the Fallout community has done much more research into the SPECIAL stats.
Some of the information has been updated.

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Every dweller in your vault has a set of SPECIAL stats. These SPECIAL stats are measured on a scale of 1 to 10 (except in a few circumstances).

Dwellers with higher SPECIAL stats will perform most actions more efficiently than dwellers with lower SPECIAL stats.

Put your dwellers in training rooms to increase their stats.

• Determines a weapon's damage output. Weapons cannot exceed their maximum damage value (except when scoring critical hits).

• Increases the chance of breaking open a locked container - can potentially find extra loot.

• Affects the speed of the critical hit indicator. Higher Perception levels make the indicator move more slowly.

• Helps the dweller find more loot.

• A dweller's maximum health increases when the dweller levels-up. The Endurance statistic determines the value of this permanent increase.

• A dweller's maximum health increases when the dweller levels-up. The Endurance statistic determines the value of this permanent increase.
  
  
• If Endurance is 11 or higher the dweller is not affected by radiation. To gain an Endurance stat above 10, the dweller needs to equip an outfit which boosts Endurance.

• Improves interactions with strangers during dialogue options - can potentially earn a reward.

• Improves encounters with strangers met in the Wasteland - can potentially earn a reward.

• Increases the amount of Experience Points gained when a Quest is completed.
• Potentially discover additional Rad-Away and Stimpaks.

• The dweller is more likely to know an enemy's weakness. This can result in increased damage against certain creatures.

• Used when hacking locked terminals - can potentially earn a reward.

• Improves the outcome of medical-related interactions with people in the Wasteland, such as helping someone who is injured. Can potentially earn a reward.

• Determines how often a dweller attacks in a fight.

• Determines how quickly the dweller can flee from a fight. This affects the amount of health the dweller will lose while escaping.

• Affects how quickly the critical meter fills / how often you can fire a critical shot.

• Increases the amount of Caps the dweller finds.
  
  
• More likely to find higher quality loot, such as rare items.

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