Basic Fantasy RPG

A retroclone of the old B/X rules, Basic Fantasy RPG breaks from many 'sacred cows' that are still found in many other retroclones:

• Races are kept separate from classes.
• It uses a d20 style attack style where you want to roll at or over your enemies AC.
• Speaking of AC, it is now ascending rather than descending.
• All race/class combinations may go to level 20.

However, it does have a lot of good points:

• It is completely free from it's website with steady updates in the form of rule clarifications, supplements, and adventures.
• Being a retroclone it is almost perfectly compatible with all other old school and retroclone modules.
• The rules are simple enough that a GM and players can skim the book and have a party and an adventure ready very quickly (characters in under 10 minutes, an adventure in maybe an hour). Barring that there are sever free adventure modules for it that emulate a lot of the old adventures (The Chaotic Caves=Keep on the Borderlands, Saga of the Giants=The Giant Adventures, etc.).

www.basicfantasy.org