Somewhere in the Dragon Magazine issues I've been perusing lately, Moldvay comments that the part of the Basic set he is most proud of is B60 "Dungeon Mastering as a Fine Art", where he gets to impart his own experiences as a DM to newbie DMs. I leave the entire passage transcribed here below without further comment: The success of an adventure depends on the DM and his or her  creation, the dungeon. The DM should have the dungeon carefully  mapped out before play begins. Even so, a DM will quickly find  that it is impossible to predict every possibility. After all, there are  several players, and only one DM! It is not unusual for players to  find a solution, or pose a new problem, that the DM has not even  thought of. It is very important for the DM to be flexible. It is important that the DM be  fair , judging everything without  favoring one side or another. The DM is there to see that the ad venture is interesting and that everyone enjoy...

 Every once in a blue moon, I have the urge to doomscroll The Vaults of Pandius .  A bit like with Greyhawk and its online community , the Vaults of Pandius were at one point the primary way for me to explore the world of  Mystara  at a time when what I had of published materials were Mentzer's  Expert Set , the In Search of Adventure module anthology, loaning the  The Grand Duchy of Karameikos  Gazetteer when I could from the library and prodigious access to Dragon Magazine at the local library, where I was seemingly the only loaner ever interested in the older issues. The original adventure path. I have an irrational amount of love for this book. I will need to review it at one point. When I discovered the Vaults, it was like a world opening up to me, of a swathe of gamer archeologists who have studied the setting in depth and extracted a bunch of nuggets for me to take in, in the absence of a cohesive setting book to help make sense of it all. I sp...

I've been running our group through the sandbox presented in "The Vanilla Adventure" using classic D&D with some houserules, strict 3d6 in order, no re-arranging or re-rolls. I sprinkled in a few other modules (Hole in the Oak, Incandescent Grottoes, Gatehouse on Cormag's Crag. might add more). Before I go further into the review, let me just say that the actual play experience has been a blast so far. The players are loving the open-ended nature of it and all the things going on and have taken it in vastly different directions from session to session. And though the module has significant gaps it also has enough meat to help me as DM to navigate all that with more ease than anticipated. The sandbox is well-sized and with a number of dynamics going on that this can go in a number of different directions, sometimes simultaneously. The main threat, dragons, my group managed to contain early by sheer luck. In the space of our last session, they moved from recovering ...

Smaller numbers are better. It's not always  true in RPGs, but it is generally true. It's easier to work with in terms of calculation, but perhaps more importantly it makes it easier to intuitively gauge the significance of the numbers. You can feel the impact of a +1 on 1d6 more than you can on a d20. The older I get, the more I appreciate smaller numbers. The art quality in OD&D may be lacking, but the art direction  was pretty dang good. Number creep started with Greyhawk, continued in AD&D, really took off with 3e, before being scaled back a bit in 5e, with its notion of "bounded accuracy". 5e's notion of bounded accuracy still yielded a greater inflation of numbers than Classic D&D (Holmes, B/X, BECMI, Cyclopedia) which held back a bit on that front but still had slightly higher numbers than pre-Greyhawk D&D. One of the most obvious parts where number inflation took off is hit points. And in this regard, I quite appreciate the HD scale in OD...