Delta's D&D Hotspot

Quick way to find the average (expected value) of dice xDy: Take half of x, add one to y, then multiply the two. This is equivalent to what ...

I've been working on a compact collection of spells for Original D&D-style games. Here's one example -- actually the very last o...

Minor update to the Original Edition Delta house rules (version 0.5). Mostly just editorial cleanups, I felt it was important to fit on 4 pa...

Let's consider three different contexts for playing D&D: Home campaigns. Here you'll be playing with the same players & cha...

Throughout the history of D&D and RPG's (and more generally, any action/wargame), there have been a host of different algorithms to ...

Comments on the last post made me once again recall what I consider to be the most important passage in all of Gygax's writings on D...

Here's an important aspect of early D&D I've been meditating on lately: the propensity for it to be an ongoing construction of g...