Japan’s Sword World RPG Hits $2 Million in First Day on BackerKit

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Almost 40 years after it was first created, Japan’s most popular tabletop roleplaying game is finally making its English-language debut in the West, with publisher Mugen Gaming officially launching the new Sword World RPG. The upcoming game draws on the lore and rules of the original Japanese version, while also introducing updated mechanics as part of the existing Sword World 2.5 Core Rules (which were first released in Japan in 2018).

The English version of this iconic TTRPG, however, will first head to crowdfunding, with a campaign running now on BackerKit The project has already generated over $2 million in the first day alone, which suggests it will likely be in the running for one of the biggest indie tabletop RPGs of 2026.

Below, we unsheathe our blades and slice into all the details of this new version of a Japanese RPG classic.

What is the original Japanese Sword World RPG?

Sword World is a tabletop RPG first released in Japan in 1989 by publisher Group SNE (who continue to own the license today). The original game was created by Ryo Mizuno, author of the popular Record of Lodoss War fantasy novels which were inspired largely by early Dungeons & Dragons translations in Japan. Mizuno’s goal was to create a game where players could encounter the characters and locations from his Lodoss War series. To support development, noted game designer Miyuki Kiyomatsu was brought on to flesh out the rules.

The original Sword World quickly became the most popular TTRPG in Japan, selling over 10 million copies and spawning several supplements, video games and a dozens of popular novels as part of the Rune Soldier series.

Notably, Sword World has remained the most-played Japanese tabletop RPG, far surpassing interest in Dungeons & Dragons (which never achieved the same level of market penetration as it did in the West). As a result, in 2008, Group SNE published a new edition known as “Sword World 2.0” which introduced a number of mechanical refinements, with further updates made in 2018 to the current edition, which is referred to as “Sword World 2.5.”

Mechanically, Sword World uses an engine known as the 2d6 System, which has remained core to the game over the past four decades. To take an action, players roll 2d6, add their stat modifiers and skill level, and compare that to a target number featured on a table. A 12 is an automatic success and a 2 is an automatic failure.

Character progression is built on a hybrid class-skill system called ginou, where players mix technical skills and abilities rather than following rigid classes. The original game features eight core player ginou (Bard, Fighter, Priest, Ranger, Sage, Shaman, Sorcerer and Thief) and five major races (Human, Dwarf, Elf, Half-Elf and GrassRunner – the latter of which is a Hobbit-like species). Magic in the game is broken out into different types known as mahougo, which are based on the concept of words having power. Each magic system is associated with a specific language and ginou, and includes options such as spirit magic, divine magic, dark magic, dragon magic and common magic.

In terms of the lore, Sword World remains virtually synonymous with Rune Soldier and Record of Lodoss War, both of which have gone on to spawn a series of incredibly popular manga graphic novels, anime TV shows and films. The game is set primarily on the continent of Alecrast within the world of Forcelia, which is heavily influenced by D&D in tone, while the aesthetic is very much inspired by Japanese manga and anime.

What’s included in the English Sword World RPG?

The new English language version of the game uses the Sword World 2.5 rules a base and offers the following:

• 12 ancestries: Human, Elf, Dwarf, Tabbit, Runefolk, Nightmare, Lykant, Lidraken, Grassrunner, Melia, Leprechaun and Tians.
• 16 classes: Alchemist, Bard, Marksman, Martial Artist, Conjurer, Enhancer, Priest, Ranger, Fairy Tamer, Fighter, Rider, Sage, Fencer, Magitech, Scout and Sorcerer (plus new rules for multiclassing).
• New combat rules: Including options for basic and advanced battles.
• New equipment: Ranging from standard sword and sorcery gear to more unique magical and high-tech items.
• New art: The rules will include new illustrations, including work from original Lodoss War artist Hitoshi Yoneda.

Notably, the English language version of Sword World 2.5 is divided into the following three books:

• The Core Rulebook: Contains everything players need to build characters, understand the rules and dive into the world.
• The Gamemaster’s Guide: Provides dedicated tools, guidelines and advice for running campaigns and handling encounters.
• The Monster Manual: Features over 300 unique creatures and NPCs for players to battle.

All of the material is being produced by Mugen Gaming, which is a US-based company that specializes in bringing Japanese games to the West.

What are the backer options for the new Sword World RPG?

While the primary focus of the BakcerKit is the three Sword World 2.5 supplements, the campaign also features a number of additional accessories, including dice, art, plushies, original art and other merch. Key backer tiers are as follows:

• Core Rulebook PDF ($25 USD): A PDF of the Core Rules, plus the instant-access primer and character sheets.
• Player Bundle ($150 USD): The core rulebook in print and PDF, plus custom dice, a dice tray and digital assets.
• Standard Slip Case Set ($175 USD): Standard hardcovers of the Core Rulebook, Monster Manual and Gamemaster’s Guide, plus a GM Screen, all together in a single slipcase.
• Standard Slip Case Bundle ($275 USD): All three core hardcovers, the standard slipcase and the GM screen.
• Core Set ($375 USD): All three core hardcover rulebooks within a Standard Compartment Box alongside the Standard GM Screen and reference materials.
• Deluxe Slip Case Bundle ($375 USD): The Collector’s Edition variants of all three books with the Limited Edition GM screen and a Deluxe Slip Case.
• Deluxe Set ($550 USD): A premium compartment box, deluxe treatments for all three books, card boxes and specialized accessories.
• Collector’s Edition ($825 USD): Everything in the Deluxe Set plus eight premium dice sets, a plushie of your choice, art prints and a dice scroll.
• Swords of Genesis ($1,500 USD): A double-compartment collection featuring six books, two GM screens, 12 card boxes, all three plushies, dice trays, battle mats and complete art print sets.
• Swords of Genesis: Signed ($2,000 USD): The Collector’s Core Rulebook personally signed by Hitoshi Yasuda, Kei Kitazawa, and Miyuki Kiyomatsu.

Final thoughts

Sword World is one of the most influential tabletop RPGs of all time – even if it isn’t as well known outside Japan. With this new translation it finally has a chance to reach a massive audience in the West.

We’ll be keeping a close eye on this story in the days ahead. In the meantime, you can back Sword World from now until November 20 on BackerKit