When Matt Colville announced that MCDM would start a magazine, he was very clear about the commercial requirements. Arcadia would need to be a success, and the first few issues would be a test.
Nightmares 1 is a collection of monsters for 5e by Cthulhu-famous Petersen Games. It gets a thumb up from this reviewer.
Created by Cat Evans and Liz Gist, this first of the Dreadful Realms books takes D&D 5e into a dangerous city called Sepulchre, deep in the Underworld and ruled by an ancient being.
Ex Stasis Games will launch their first game Dreadful Realms: Caverns of the Wise Minister on Kickstarter.
Jeff Steven's book of short adventures for D&D's 5th setting is compatible with the basic rules and creatures but also Kobold Press' Tome of Beasts and Creature Codex.
In the video these writers reminisce on Werewolf, talking about why the game is important to them and what their favourite tribes have been.