Been revisiting Planescape setting for campaign ideas. Not much is updated to #dnd5e as yet, but 'Planar Passages' is an excellent digest and reinterpretation of the core concepts of the D&D cosmology. It somewhat streamlines interplanar travel rules and is especially useful if playing in a looser Forgotten Realms set campaign, or alternate multiverse setting such as Eberron (or perhaps even Ravnica?) where the great orrery is arrayed differently. The author obviously put a lot of time, energy and passion into it. The diagrams depicting the relationships of the planes are exceptional. It's a great piece of work that deserves more attention.

Ignores, re-writes, and disrepects existing lore. There is nothing I'd use from this. However, if you're looking for something very different from Dungeons and Dragons existing cosmology, give it a look. PWYW means there's no commitment, although if you do like it, throw the author some pocket change to show appreciation. Or leave a review!

If you're a purist for any specific D&D cosmology you may not like this, but personally I really enjoyed it. Planar travel is one of my favourite parts of the game, and it's really nice to see somebody take a new approach to laying out the planes and describing (and facilitating) travel between them. This new model is really interesting, and I really like the new planes presented here. My favourite part of this book is the writeup of The Great Library, but the whole thing is gold.

-Chris, Loot The Room