When "Metamorphosis Alpha" was updated and expanded into "Gamma World", it seemed the right time for Gygax to reintroduce "Expedition to the Barrier Peaks" to the public. Said Gygax, "What could be more logical than to make available a scenario which blends the two role playing approaches into a single form?" Gygax updated the scenario to "Advanced Dungeons & Dragons" (AD&D) rules, hoping it could serve as a primer on how to integrate science into one's fantasy role playing game. In 1980, the updated version was published as "Expedition to the Barrier Peaks". At the time of "Expedition to the Barrier Peaks"'s release, each "Dungeons & Dragons" module was marked with an alphanumeric code indicating the series to which it belonged. The 32-page adventure bears the code "S3" ("S" for "special"). The module included a 36-page book and a 32-page book, with two outer folders; it was one of the first deluxe scenario modules, and included a book of illustrations intended to be shown to the players during the game, including four color paintings. This module was included as part of the "Realms of Horror" abridged compilation produced in 1987. Although an article on the Wizards.com web site did provide a conversion to "Future Tech", the adventure never received an official sequel and was not updated for the D&D version 3.5 rules (Wizards of the Coast periodically alters the rules of Dungeons & Dragons and releases a new version). The adventure has also been referenced in the Nodwick comic series. Unlike the other S series adventures, "Expedition to the Barrier Peaks" was not included in the "Dungeon Survival Guide" by author Bill Slavicsek because to him it was a "wonderful adventure", but not "a D&D adventure. Once you add ray guns and power armor to the game, you have a fundamentally different experience." Other products that have introduced futuristic elements into D&D include the adventure "City of the Gods" (1987) and the novel "Tale of the Comet" (1997).