Fallout: New Vegas Reputation

Reputation in Fallout: New Vegas is a way to measure general feeling for your character in each principal towns and factions and will even give you access to new areas in the game.

Reputation can be modified by doing good or bad deeds, like completing quests or killing townsfolk or member of a faction. Your reputation with any given group is a measure of the combined total of Fame and Infamy that you have earned. The benefits and drawbacks of any given reputation depend of the group itself. You may receive discounts with merchants, provoke attacks from hired thugs, or simply be treated differently.

Reputation
The 3 different scales of Reputation are Positive, Neutral, Negative. The levels of each scale are listed below.

Positive

 * Idolized = 6
 * Liked = 5
 * Accepted = 4
 * Good Natured Rascal = 3
 * Smiling Trouble Maker = 2
 * Neutral = 1

Neutral

 * Wild Child = 6
 * Unpredictable = 5
 * Mixed = 4
 * Dark Hero = 3
 * Soft-hearted Devil = 2
 * Neutral = 1

Negative

 * Vilified = 6
 * Hated = 5
 * Shunned =4
 * Merciful Thug =3
 * Sneering Punk =2
 * Neutral = 1

Faction reputation

 * Brotherhood of Steel
 * Caesar's Legion
 * Followers of the Apocalypse
 * Great Khans
 * New California Republic
 * Powder Gangers