Coming from Luke Gygax and Alphinius Goo is an adventure created as a tribute to D&D co-creater Gary Gygax. A boxed set, it includes books, poster maps, handouts, cards, and more, and encompasses both an adventure and a campaign setting.
The set is designed for various systems, including OSE (Old School Essentials), D&D 5E, and others.
The adventure itself is 60 pages, for 6th-8th level characters and tasks the PCs with discovering what happened to the long-missing archmage, 'Garold Gyzaengaxx' (no relation of course). The full set contains a 120-page setting book, a GM reference book, a 100-page lore book, and more.
Hear now of the horrendous, historic, and somewhat hilarious opening of the Tomb of Gyzaengaxx — what was once a keep where the great wizard, Garold Gyzaengaxx held sway. But some years past, Garold disappeared, and the keep became a place of much terrifying rumor. Indeed, many deadly monsters, puzzling traps, magical maladies, dark characters, and a most intriguing mystery may be found herein.
The Tomb of Gyzaengaxx is on Kickstarter now. The PDF version of the adventure comes in at $55, with the physical version at $65. The campaign setting is $135 digital or $150 physical. And for both, you're looking at $185 digital and $200 physical. There's also higher level pledges which come with autographed versions, and a seat at a convention game with the authors. It's not cheap, but you do get a ton of stuff. The Kickstarter has passed a quarter million dollars already with nearly a month left to go.
The set appears to be full of 'easter eggs' and nods to D&D's history, and even has NPCs based on various game creators--Ed Greenwood, Erol Otus, Tim Kask, Peter Adkison, and many more.
