The Chronicles of Amber
Once "Angband" was released to the public via USENET, there were efforts to have code maintainers (the "devteam") to fix bugs, clean up the code and implement suggestions into the code. Due to numerous shifts in those maintaining the code (due to other obligations), and the number of potential user suggestions to include, "Angband" would become highly forked, leading to a number of "Angband" variants; at least sixty known variants exist with about a half dozen still under active development. One significant fork was "ZAngband" (1994) (short for "Zelazny Angband"), which expanded on "Angband" and altered the theme towards Roger Zelazny's "The Chronicles of Amber". The "ZAngband" codebase would be used to create "Troubles of Middle Earth" ("ToME") in 2002, which later swapped out the Tolkien and Zelazny fiction setting for a new original one to become "Tales of Maj'Eyal" (2009). The vanilla "Angband" remains in development today by the devteam.