We have released two more chapters of the Dark Sun 3 Core Rules revision 7.
The new releases are Chapter 4 – Prestige Classes, and Chapter 10 – Magic and psionic items. The versions of the prestige classes in Chapter 4 have expanded descriptive text and supersede those in Prestige Class Appendices I and II. Chapter 10 has a selection of items and artifacts from Athasian Emporium.

Interesting read guy, I like.

I love this R7 stuff! They’re all such great quality releases and it’s so good to finally have the Core Dark Sun material in one comprehensive document.
One question though: In Chapter 10, on page 11 in the Crimson Monolith section there is a reference to the “Nightmare Gate”... What is this gate and where is it described?

And there are a few NPC that have yet to be completed? Missing stats.

The Nightmare Gate is from the 2nd edition adventure Black Spine. I do not think it has been updated in any 3e products but maybe Bruno can say if it will be included as an artifact in the next release of Legends of Athas.

Most NPCs are incomplete because the races and classes might suffer some alterations during the feedback phase, so I save some time until I complete everything else. They will be fully stated when the final pdf comes out.
I never planned in converting the Nightmare Gate because IIRC, it has been destroyed in the Black Spine adventure and r7’s timeline begins on FY10.