So, knowing that the 2024 DMG is going to feature Greyhawk as an example setting, I’m starting to play around with the idea of running a 2024 campaign there. I know basically nothing about the setting, so I’m hoping the new DMG will give me enough of a picture of the setting to get me started. But that doesn’t do me any good right now and right now I have the creative energy surrounding the idea, but nowhere to direct it. I don’t want to lose that momentum, so if anyone could point me to any good resources, either for information about the Greyhawk setting itself, or for running a campaign set in it. I’m particularly interested in the idea of a highly site-based (as opposed to event-based) sandbox game featuring a many dungeons from classic modules as adventure sites the PCs might be able to visit.
Thanks for any suggestions y’all can offer!
The 1983 World of Greyhawk Boxed Set (not to be confused with the 1980 World of Greyhawk Folio) is probably the best source, as others have stated. It should be based in the same timeline as the DMG. It provides information on a lot of aspects of the world, but it leaves much more open for the DM to fill in as desired/needed. I've used this to run every edition except 4th, as it doesn't have too much space spent on AD&D mechanics.
The next best source is the 3E Living Greyhawk Gazetteer. It's excellent because it can fill in a lot of information for you, so that you don't have to come up with the details yourself. However, it is based a couple of decades past the Boxed Set, so you'll have to decide how to handle the timeline difference. Additionally, it's an encylopedia for Greyhawk... and it reads that way. Going through it often feels like doing a research paper.
An unofficial source that I personally don't like is
www.canonfire.com, which is a fan site. It's got a ton of information, but since it's all fan material, I find the quality to be questionable. It's very popular though, and might give you some inspiration.
Finally, I would consider looking into the various classic dungeons for Greyhawk. You'll have to convert them into 5E, but it's pretty easy to turn them into a full campaign. There's also Castle Zygag from Troll Lord Game (iirc) which is an homage to the original Castle Greyhawk, which you can use in its place (as I'm planning on doing). I don't have a complete list, but I know that the Temple of Elemental Evil, Slave Lords, Castle Maure, Ghost Castle of Inverness, and White Plume Mountain are all in the general vicinity of the City of Greyhawk.