Another product from the DM's Guild, and another item supporting Eberron in 5e from the creator of the setting, "Exploring Eberron" is a 249-page PDF (with Print-on-Demand option) split into eight chapters. Intended as a companion piece to the hardback "Eberron: Rising from the Last War", this shows a slightly different slant on the setting - something of a "director's cut", bing Keith Baker's own take on the setting, or at least part of it.
The chapters in brief are:
- Discovering Eberron: 26 pages on ancient and recent history, and then some material on forms of magic and artifice.
- Races of Eberron: 16 pages covering Changelings, one Elven culture, Kalashtar, Shifters, and Warforged.
- Faiths of Eberron: 32 pages on various religions, and a brief look at the Aasimar.
- Uncharted Domains: 62 pages detailing heretofore uncovered areas: Droaam, the Dhakaan, the Mror Holds, and the Thunder Sea.
- Planes of Existence: A further 62 pages looking at the various planes in a bit more detail.
- Character Options: The inevitable grab-bag of new backgrounds, subraces, feats, and subclasses. This one runs to 16 pages.
- Treasures: 12 pages of new magic items, focusing on items unique to Eberron - dragonshards, symbionts, etc.
- Friends and Foes: 14ish pages of new monsters.
There is an awful lot to like here. It's composed, written, and illustrated in much the same way as an "official" book, and the experience of the team here rivals that of most published products. Plus, of course, Baker's knowledge of, and enthusiasm for, Eberron is second to none.
For me, the highlights were definitely the two chapters on Uncharted Domains and the Planes of Existence. As can perhaps be gathered, I wasn't so keen on the last three chapters - as noted, they pretty much felt like things that had to be there, rather than game-changers. That said, I don't think any of the material is bad, and may well use, or allow, it into my games. But it did leave me a little cold.
I would recommend this one to people who like Eberron, and liked "Rising from the Last War" but who want a bit more. (And I would definitely recommend it over "Morgrave Miscellany".) But I probably wouldn't recommend this in isolation, or to someone who didn't like, or didn't care for, Eberron as a setting.
One final thought: I'm now at a point where I think I have almost enough Eberron material. If WotC produce another hardback I'll certainly take a look, and if Keith Baker produces more products on the DM's Guild then I'll likewise consider them, but I'm probably only in the market for one of each now, at least until such time as I actually make use of the setting for another campaign...