My own RPG group recently got back from the Feywild. It'd been a long time since I'd had a campaign go planes-hopping, which is sad because there's so much you can do out there. Astral Tides looks to help with that, by giving gamers lots of options for planes-hopping, from equipment to vehicles to locations and more. The book is up on Kickstarter now.
From the campaign:
The time has come to bring planeshopping adventures, ships, races, etc back to life, using 5e. We've been rather starved for content that isn't generic fantasyland, up until the releases of a paid setting playtest and MTG conversion from Wizards. It's time we, the playerbase, had access to a new and exciting plurality of mechanics and settings, not simple gazetteers.
Within this book you'll have planes-sailing ship mechanics (I've already done localized airships, so this is a literal cakewalk) in addition to other exotic vehicles (which I've also done in the past).You'll explore at least 4 or 5 worlds with a few major locations and brief histories set up, worlds a GM can *actually* run in. I want them to have unique racial setups with as little overlap as possible, providing at least a dozen new player races. These will have their own planeswalking/sailing setups, along with unique weapons, takes on magic, etc. You'll also (finally) get large races!
This is all in addition to fleshing out a new planar cosmology, and taking a deep dive into those transitory planes well suited for travelling between material worlds. Each one of these planes will have at least one major society a GM could feasibly have their players visit or interact with, at *least* in passing.
This is also an opportunity to introduce personal equipment beyond simple magic items for use in just about any campaign; masterwork items! The living-bug weapons of Nzadiman, the clockwork and steam guns of Brackas, the feared siphons of Iyon, a host of non-magical equipment to dump gold for waits for you and your players in this campaign. Grappling hooks, gliders, small animal companions that don't require a second character sheet to run, the possibilities are nigh endless.
Finally, we for the first time at AOC are allowing fans to contribute in a more direct way to the book. By backing at the appropriate tier, you as a backer can contribute an NPC, player race, or even a world to the book, placing your name on the cover, in the credits, and on the DTRPG page.
We expect this book to be anywhere from 150 to 200 pages long, if not longer.
The campaign is super-close to its goal with 18 days left to go.