Feudal Japanese Fantasy RPG Resources (updated 3/25/14)

http://moderntokyotimes.com/2013/10/13/japanese-folklore-and-art-oni-demons-the-world-of-jigoku-hell-and-yoshitaki/

This list of free and low-cost resources is undoubtedly not comprehensive, nor is it all that I have collected for my own planned campaign. Indeed, I have acquired Bushido, Legends of the Samurai, Sengoku, Oriental Adventures (both versions), Rokugan campaign setting, Magic of Rokugan, Iron Dynasty (Savage Worlds), and more. All of which are great for ideas

But, had I found a list like this to start with, I'd have saved some money but, more importantly, time.

I suggest starting with the free background materials - you might find you can cobble together a setting/classes for your preferred system with little or no purchase required.

Free!

Rules
M20 Yamato d20, a themed version of the famed Microlite 20 rules.
Revived: Oriental Appendix - House rules and revisions for First Edition Advanced Dungeons and Dragons
Oriental Classes (B/X, Labyrinth Lord)
Oriental Monsters (B/X, Labyrinth Lord)
Scarlet Heroes Quick Start (added 3/25/14)
Shinobi & Samurai OD&D-ish game for Oriental adventures. (added 3/25/14)

Tons of stuff from the creator of Ruins & Ronin (look at the right hand side of the screen, under Downloads)

Setting

Kaidan: the Preview 

Modules
Beneath an Opal Moon
Frozen Wind
Legacy of Disaster
Random Ruins & Ronin Adventure Generator

Minis and  Maps:
Samurai Themed Wargame Playset
Japanese Garden

Background Material (this will give you plenty to work with, regardless of system or even genre):
Bushido, the Soul of Japan by Inazo Nitobe
Japanese Fairy Tales by Yei Theodora Ozaki

Kwaidan: Stories and Studies of Strange Things by Lafcadio Hearn

Tales of Old Japan by Baron Algernon Bertram Freeman-Mitford Redesdalen

$1.00 or less:
Rules
Ruins & Ronin (Swords & Wizardry White-Box with new classes)
Ninja (class for Labyrinth Lord)
Samurai  (class for Labyrinth Lord)
Tanuki (class for Labyrinth Lord)
Heroes of the Far East: Samurai
Heroes of the Far East: Ninja

Setting
Land of the Samurai (RuneQuest, but lot's of historical info. Includes the Beneath an Opal Moon scenario)

Modules
Blood on White Petals
Unspoken Shame
Treachery's Reward
The Daisho & the Ninja
Legacy of Disaster (L5R 4th ed. Quickstart)

Minis:
LVMENES Minis - Feudal Japan

LVMENES Minis - Feudal Japan - Set 2

$1.01 to $5.00:
Rules:
BUDO: Hard Style Wushu
Quick20: Asiatic Adventures
Ronin: Oriental Adventures in Tokugawa Japan
Shrine Maiden (class for 4e)
The Quintessential Samurai (d20)
Daisho: Samurai Adventure
Classes of the Far East (LL)
In The Company of Tengu: A 1st-20th level Player Character Racial Class (PFRPG)
Bakemono (PFRPG)

Setting:
Legends of the Samurai: Legends of the Koryo Empire (this is actually included in the Legends of the Samurai rule book available for $8.00 in hardcover!)
The Grimoire #10 (article on Shinto Shrines)
Shinobi Ryu

Modules:

Legends of the Samurai: Protect the Master
Legends of the Samurai: The Escape from the Haunted Lands
Shukuen: Merchant's Greed
Shukuen: The Abduction
#30 Haunts for Kaidan (PFRPG)
Way of the Samurai (PFRPG)
Way of the Samurai (PFRPG)
Bells of the Dead
Daisho Adventure Pack #1
Up From Darkness (PFRPG)
The Tolling of Tears (PFRPG)
Haiku of Horror: Autumn Moon Bath House

Minis and Maps:
Serene Fist Set One: Monks vs Bandits
Serene Fist Set Two: Ninja vs Samurai
Serene Fist Set Three: Ninja vs Samurai 2

DOLLAR DUNGEON$-DOJO
Fantasyscape: Yoshida Shinto Shrine

Background Material
Folklore and Fairy Tales of the East
Weapons & Castles of the Orient
Weapons & Assassins