AlterniaBound is the eighth (formerly twelfth) official album released on the Homestuck Bandcamp, and the fourth music team compilation album. It is the second album themed after the beta trolls, the first being Toby "Radiation" Fox's solo album, Alternia. Unlike Alternia, which is themed after the trolls' pre-SGRUB adventures, AlterniaBound is themed after the trolls' defeat at the end of their session, and the sociopsychological conflicts which occur in their confinement in the Veil.
AlterniaBound directly corresponds to a portion of Homestuck's Act 5 Act 2, which included three playable Flash games featuring the ability to control troll characters, engage in conversations with their fellows, and explore the meteor on which the twelve are stranded. These games, along with other Flash animations from this time period in the comic's run, use music directly from AlterniaBound.
The album inherits Alternia's focus on leitmotif, with Toby "Radiation" Fox returning to present new themes for many of the beta trolls, and several other musicians offering their own interpretations of the characters or events from this portion of Homestuck.
The album shares a name with a particular interactive page in the comic. Like many of the larger interactive pages, (S) Past Karkat: Wake Up. has an alternate name that refers to its gameplay—in this case, AlterniaBound. This name is one of several in the comic (including the title Homestuck) that refer to the console game EarthBound, which was a big inspiration for the comic and its interactive nature.
Rex Duodecim Angelus Edit
Several of the tracks are not inspired by events in the particular time frame of AlterniaBound, but rather other parts of the trolls' adventures. The track "Rex Duodecim Angelus" is inspired by the trolls' fight against their SGRUB session's Black King, a plot point that seemed enormous but that was only briefly referenced in the comic.
On June 12, 2014, a massive collaborative fan animation also titled Rex Duodecim Angelus was published to Youtube, chronicling the beta trolls' battle against their Black King. It is scored with the tracks Rex Duodecim Angelus and Killed by BR8K Spider!!!!!!!!.