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For a cross-game overview of this perk, see Adrenaline.

 
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Gametitle-FO4.png
Adrenaline is increasing your damage. Stay awake and get more kills to increase the bonus. Sleeping will reduce it.— Perk description

Adrenaline is a perk in Fallout 4.

Effects

Adrenaline is a perk that is granted automatically to the Sole Survivor when playing on survival mode. It provides a bonus to damage output and is increased by killing enemies. Every five kills made increase the Adrenaline rank, adding five percent bonus damage, up to a maximum of 50% at rank 10.

Rank Requirements Effect
1 5 kills 5% bonus damage
2 10 kills 10% bonus damage
3 15 kills 15% bonus damage
4 20 kills 20% bonus damage
5 25 kills 25% bonus damage
6 30 kills 30% bonus damage
7 35 kills 35% bonus damage
8 40 kills 40% bonus damage
9 45 kills 45% bonus damage
10 50 kills 50% bonus damage

Sleeping in a bed removes a certain amount of ranks, depending on the amount of time the Sole Survivor has slept. The first hour of sleep always costs two ranks, with the next four hours costing one rank each. Any additional hours slept will cost two ranks per hour.

Hours slept Ranks lost
1 2
2 3
3 4
4 5
5 6
6 8
7+ 10
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