Love this. I read through the original Pathfinder Pure Steam setting for inspiration, but wasn't able to make much use of most of the content for my 5E campaign. When I heard they were working on a 5E conversion I couldn't wait to get my hands on it. And it did not disappoint! The new subclasses are all very well-thought out and balanced, and I LOVE the two new classes: Chaplain and Gearhead. I've read through every Steampunk sourcebook for D&D (and some Pathfinder) I've ever been able to dig up (which is a lot), and this is by far the most complete. A lot of what I've found elsewhere I use about 25% and discard the rest, but I plan on using everytghing in Pure Steam 5E in my games. The tech info, new spells, setting notes––everything in this book delivers. If you want a complete D&D 5E steampunk setting, or just want to add some sreampunk flavor to your game, this is it. A+ product, couldn't be happier.