Swords & Wizardry Core Rules
A close imitation of the original 1974 D&D game by Gary Gygax and Dave Arneson¸ created using the Wizards of the Coast Open Gaming License. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim"
The new fourth printing (May 2011)! Swords & Wizardry is the ENnie-Award winning "retro-clone" of the original fantasy roleplaying game created by Gary Gygax and Dave Arneson. The Core Rules also contain some selected material from the supplements (1974-1978). With a thriving internet community and tons of support products¸ Swords & Wizardry is bringing back a lost style of fantasy roleplaying. Forget huge rulebooks - this book and imagination (and dice) are all you need! If you can imagine it¸ you can do it in Swords & Wizardry. The rules are simple and quick to learn¸ and they are infinitely flexible and expandable. Take the basic framework and "Imagine the hell out of it!"