How to Increase The Level Cap in Fallout New Vegas The Logan’s Loophole trait is derived from the movie’s concept and is swiftly implemented into the game in the form of a trait hence there is Fallout New Vegas level cap of 30. All the citizens shown in the movie were killed after reaching 30 years of age. This trait is a reference to Logan’s Run, a 1976 science fiction film. You might find this interesting: Fallout New Vegas Console Commands The Backstory of Logan’s Loophole There is interesting lore attached to the trait, one that simplifies the purpose of Logan’s Loophole but does not directly say it. Like most traits in Fallout New Vegas that offer benefits as well as penalize the Courier, the same applies to Logan’s Loophole.
Even after buying the DLCs, the level cap can not be increased beyond the locked point.
Logan’s Loophole is a base game trait, and assigning it to the Courier will permanently lock the level cap at 30. There is one tiny detail that players need to look out for should they intend to level up beyond 30 by buying the downloadable content of Fallout New Vegas.