In case you didn't know, Dungeons & Dragons (sometimes known as D&D or DnD ) has been around since the 70s, although the current version, known as "5th Edition", was released in 2012.
Whilst it's still possible to play the older versions (and a lot of people do), the fifth edition is the most popular, mostly due to its accessibility and versatility. Sadly for veterans, however, new editions mean new rulesets, and new rulesets make a lot of settings from the older versions unplayable (at least without extensive homebrewing).
This is where the hype for Spelljammer comes from - Spelljammer had its heyday from 1989 to 1993, when D&D was running under the second edition rulesets. For almost the last decade, Fifth Edition fans have been begging for a reincarnation of the setting that they could play, and they have been doing this the only way gaming nerds know how - memes.
