"Basic/Expert" Dungeons & Dragons by Moldvay/Cook from 1981.

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Did Basic D&D invent and popularise the abbreviation XP for experience points? [closed]

Basic Dungeons and Dragons page B22: Experience points (abbreviated XP, as ep stands for electrum pieces) are given for non-magical treasure and for defeating monsters. Is this why in most games ...
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Rules for increasing ability scores in Basic D&D?

Are there any rules (house or otherwise) for increasing ability scores after character creation in Basic D&D or any of its retro clones? (Other than magic items or wishes.) When we generated ...
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193 views

Moldvay D&D First Round in Encounter

I'm confused about how to DM the first round of an encounter using Moldvay's rules, specifically, when is the DM supposed to use the Monster Reaction table on page B24. Say a party encounters a group ...
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421 views

Melee Combat in Moldvay's D&D Basic

I'm working on a CRPG, written in Python, that will hopefully re-create some of the fun from the original D&D Basic Set (Moldvay's 1981 red-box edition), and so I'm getting into some pretty ...
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314 views

Fighting Withdrawal v.s Retreat in Moldvay's Basic D&D

This pertains to Moldvay's edition of D&D Basic from 1981. I've never understood the rules behind meleed movement options. The rulebook says that a player in melee combat with a monster has only ...
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209 views

How many things can a player do on his or her round?

I'm just starting out DMing in D&D, using the Moldvay basic rules from 1981. A player encounters a monster that is 100' away. The player wins initiative and wants to do the following on round 1: ...
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830 views

Turns vs. Rounds playing time in Moldvay D&D 1981 Ed

In D&D (Moldvay 1981 Basic rules) turns are 10 minutes each, used for normal adventuring time. When an encounter occurs, time shifts to rounds (10 seconds each). This means 60 rounds equates to ...
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276 views

Moldvay Basic D&D - Mapping using Charater Movement Rates

I'm dusting off the Moldvay Red Basic Rulebook (1981) and taking a stab at figuring out some of the rules that I, frankly, didn't fully understand when I was a kid. On B19, under the MOVEMENT ...
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Does exploration movement rate in Basic D&D (B/X) include trap/secret-door detection?

In the Basic Rulebook for D&D, on page B19, it states that characters can move 120' in a dungeon per turn (10 minutes). Later it states that this movement assumes players are mapping carefully, ...
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489 views

In calculating Basic D&D monster experience, what's a special ability?

I really like my good ol' Moldvay Basic D&D. Every once in a while, it's missing a rule I want, and I make it up. Then I feel clever. Sometimes, though, I want to know what everybody else did ...
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577 views

How does Adventurer Conqueror King differ from B/X D&D, Labyrinth Lord, and Pathfinder?

Exactly how does Adventurer Conqueror King differ from B/X D&D, Labyrinth Lord, and Pathfinder? If I wanted to begin playing with a system-light D&D, preferred ascending AC, and wanted ...
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How can players learn the nature of magic items?

I'm running a sandbox campaign with Adventurer Conqueror King System (essentially Moldvay-Cook Basic/Expert D&D). My players are starting to find probably-magic items during their expeditions and ...
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2k views

In early D&D, why would chainmail ever be preferred over plate armor?

In early D&D, both chainmail and plate armor were considered metal armor, and to slow the wearer to 60' per turn. Chainmail cost 40gp, and plate armor 60gp. Their encumbrance was 400 or 500 coins ...
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1answer
482 views

Where can I find a database (sqlite, csv, etc) of Dungeons & Dragons Basic Set character and monster data?

I'm writing an engine for Dungeons & Dragons Basic Set (Red and Blue Box) First Edition (1E) in Python and would like to be able to read from an existing database of what is in the players and ...
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5answers
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What are the differences between Holmes, Moldvay, and Mentzer D&D?

What are the differences between Holmes, Moldvay, and Mentzer D&D? Also, which one came first?