Night Person

Night Person is a perk in Fallout 3, Fallout: New Vegas, Fallout 4, Fallout 76, Fallout: The Roleplaying Game and Fallout: The Board Game.

Fallout 3 and Fallout: New Vegas
With this perk, the player gains +2 to both Intelligence and Perception (up to a maximum of 10) between 6:00 P.M. and 5:59 A.M. in-game time.

As this perk only gives a temporary increase to the player character's statistics (unlike the Intense Training perk), it does not give an advantage when leveling up - there is no change to the number of skill points gained and the increased stats do not count for any perk requirements. Thus, the only effects are enhanced threat detection, Intelligence and Perception ability checks (in dialogue and elsewhere), and a bonus of +4 (or less if the player character's Perception and/or Intelligence is already higher than 8) to Medicine, Repair, Science, Energy Weapons, Explosives and Lockpick.

Fallout: The Roleplaying Game
Reduce any difficulty increases due to darkness by 1.

Fallout: The Board Game
Once obtained, the Night person perk can be discarded to move to any space on the world map. Once there, the player character may perform a fight, quest, or encounter action.

Bugs
The night vision bonus may remain active while standing / during daylight hours (6:00 A.M and 6:00 P.M.). This causes the sides of the screen to be blurred when standing, and can cause things to be WAY too bright during daylight hours/indoors. Fixes (works on Console too):
 * Fix 1: While standing, go into the Pip-Boy, then into the skill tree, then back back out (sometimes just going into the Pip-Boy and backing out works).
 * Fix 2: While Standing, go to any container and enter the 'transfer' screen, then back out.
 * Force Bug to Happen: The bug may be manually activated by crouching, waiting for night vision to activate, then going into the Pip-Boy, backing out, and standing up (to test).

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