Spelljammer: AD&D Adventures in Space is a 1989 boxed set accessory for the Spelljammer campaign setting, part of the Advanced Dungeons & Dragons fantasy role-playing game. It supplies rules and materials for playing AD&D in space. The set was well received by critics and fans. Contents The Spelljammer boxed set describes rules for AD&D in outer space. The "Lorebook of the Void" booklet describes space travel, commonly known ship types, spacefaring races, and monsters. The "Concordance of Arcane Space" details fantasy combat, more rules for spaceships, celestial mechanics, travel, and variations on rules for space. The set includes cardstock sheets which provide both descriptions and deck plans for various ships, and counters for ship-to-ship combat. The set's large color maps depict two floating cities in space, a grid for space combat, and a map of the space between the planets of the Greyhawk, Forgotten Realms, and Dragonlance campaign settings, which allows player characters to travel between these settings. The set also includes guidelines for space campaigns, as well as campaign setting material. The set details the Spelljammer helm, which any spellcasting character can use to pilot a ship through space. There are two kinds of outer space: "wildspace", which is similar to the outer space of science-fiction with some alterations to its physics, and the "phlogiston", an ocean of a unique element in which many vast crystal spheres float around. The set includes systems for designing starships and for celestial navigation, and visual displays representing planetary systems for design and space travel. It provides mechanics, counters, ship displays, and a map display for tactical engagements between spelljamming craft; the mechanics are explicitly designed to supplement role-playing, not as a stand-alone board game. The tactical engagement system includes 8½" × 11" cardstock displays for 11 types of spelljammer ships, with a color illustration of the ship and a summary of tactical combat features on one side, and deck plans with map keys on the reverse. The elves of the Spelljammer campaign are the largest political and military presence in space, having just completed a successful extermination of interstellar orcs and goblins throughout the known universe. Dwarves use huge spacefaring asteroids, honeycombed with tunnels. The lizard men and tinker gnomes (from the Dragonlance setting) are available as PCs; the beholder and the mind flayer appear as intergalactic menaces, along with a new race, the neogi. The set also contains color fold-out maps