Basic Fantasy RPG is one of the first retroclone RPGs. Based mostly on BX D&D by Tom Moldvay and David Cook, BFRPG provides a simple and robust chassis that makes it easy for new players and Game Masters to get started with a minimum of confusion and unnecessary complications. It is also supported by an active community of contributors, and all the material is available for free (electronically) or at cost (when available for print on demand), making BFRPG perhaps the best choice for new players and GMs.
Recently I had the opportunity to recommend a system to a friend of mine, so that he can begin running his own games, BFRPG was my first choice. Here I share some house rules I've written and other information I've compiled for my own, and my friend's use.
Character Sheet
Basic Fantasy Role Playing Game - Character Sheet
House Rules
Basic Fantasy Role Playing Game - House Rules
Basic Fantasy Role Playing Game - Magic
Basic Fantasy Role Playing Game - Character Creation Guide
Basic Fantasy Role Playing Game - Backgrounds
Basic Fantasy Role Playing Game - Skills
Basic Fantasy Role Playing Game - 0-Level Spells
Charts
Basic Fantasy Role Playing Game - Attack Bonus, Saving Throws, & Clerics vs Undead