* EvenBetterSequel: A big part of their reputation is making heavily improved sequels to high profile releases, such as ''VideoGame/KnightsOfTheOldRepublic'', ''{{VideoGame/Fallout 3}}'', and ''VideoGame/NeverwinterNights'', by exploring new concepts and ideas for story.
* FaceOfTheBand: The company has largely been associated with Creator/ChrisAvellone, due to his role in writing for their most notable games. After his departure, Josh Sawyer, who directed ''VideoGame/FalloutNewVegas'', seems to have taken the spot.
* FanPreferredCouple: Most likely unintentional, but every one of Obsidian's titles where romances are present almost invariably results in the fans embracing a character who is ''not'' available. ''[[VideoGame/KnightsOfTheOldRepublic Knights Of The Old Republic II]]'' has Bao-Dur and Mira, ''VideoGame/NeverwinterNights2'' has Neeshka and Sand, and ''VideoGame/AlphaProtocol'' has Sis. It's worth noting that different fans may prefer a non-canon romance in one game while preferring a canonical one in another.