Montro
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montro.bsky.social
Montro
@montro.bsky.social
Japanese translator(EN/SE→JA).
I introduce foreign TTRPG to Japanese.
I also run a publisher Malström(https://www.malstrom.co.jp) that mainly for translating and selling indie TRPGs into Japanese.
The Kickstarter for the MÖRK BORG Japanese Edition ends in just three days. The campaign has already reached 270%!

Don’t miss out — it’s your only chance to get Johan Nohr’s limited-edition rulebook cover for the Japanese edition!
www.kickstarter.com/projects/104...
November 27, 2025 at 1:13 AM
【拡散希望】
この『MÖRK BORG 日本語版』クラウドファンディングが盛り上がれば、今後さらに多くの海外TRPGが日本語化される契機になると信じています。また一人でも多くのプレイヤーがこの作品を知り、TRPGを知らない人たちにも関心を持ってもらえるきっかけとなるように、ぜひ拡散にご協力ください!
#TRPG

www.kickstarter.com/projects/104...
November 14, 2025 at 3:53 AM
The Kickstarter for the Japanese edition of MÖRK BORG is now live!

If you’re interested in the beautifully localized Japanese typography or the newly designed Kickstarter-limited edition by Johan Nohr, you’ll find this project worth supporting.
www.kickstarter.com/projects/104...
November 3, 2025 at 1:32 PM
ルールはライト。アートはヘヴィ。そしてすべてが破滅的。あのカルト的人気を誇るTRPG『MÖRK BORG(ムルク・ボリィ)』日本語版制作のためのクラウドファンディングが始動!
本日20:00(JST)からだ!

The Kickstarter campaign for the Japanese edition of MÖRK BORG launches today at 20:00 (JST)!!

www.kickstarter.com/projects/104...
November 3, 2025 at 7:52 AM
"Shinjuku Crawler"

This is a TTRPG where you explore a dungeon that appeared beneath Shinjuku in Tokyo.

You search the dungeon for valuables, fight monsters, and try to escape alive. Since your inventory space is limited, you’ll need to carefully manage what you carry out. This is a Japanese OSR.
October 19, 2025 at 2:17 PM
A TTRPG specialty bookstore "CCFOLIA BOOKS" opened in Tokyo.
You can find many kinds of Japanese TTRPGs there. You should go there when you come to Japan.

books.ccfolia.com
October 10, 2025 at 3:53 PM
"灯火と鏡の騎士(The Glow & The Mirror)"
This TTRPG has two parts. First, you play as a bard and tell the exaggerated tales of the Knight of the Glow. Most of the story is invention, but one truth remains. Then, in the past, you reveal what really happened, seen through the eyes of the knights.
September 23, 2025 at 1:17 PM
In October, a new OSR "シンジュク・ダンジョンTRPG(Shinjuku Dungeon TRPG)" will be released from Japan. Explore the underground of Shinjuku in Tokyo, which has become a dungeon.

※In fact, Shinjuku Station's underground area is vast and confusing that it feels like a real dungeon.
September 21, 2025 at 4:36 PM
I got myself something good.
June 6, 2025 at 4:09 PM
Strange Folk (Beta Version)

This is a storytaking game that uses playing cards.
Players play as travelers who meet by chance in a traveling caravan. At night, they sit around a fire and share their stories. Each player takes a turn as the Storyteller, and the others can add twists to the story.
May 20, 2025 at 6:32 PM
湯煙より愛をこめて(From bathhouse with Love)

Fungal monsters have destroyed the Earth, but it turns out their weakness is hot springs. To survive, the players run a self-moving Sentō (a type of paid Japanese communal bathhouse). Players renovate the Sentō and do business with other survivors along the way.
May 20, 2025 at 6:16 PM
マシュマロ・ブラッド(Marshmallow Blood)

This is a TTRPG set in a world where fluffy and cute mascots live. Players play as mascots who have gained desire and fight against mad mascots driven by their urges. Each character has two stats: Cute and Violence. And this contrast is the core feature of the game!
May 20, 2025 at 6:06 PM
"ほうかご探報(After-school investigators)"

This is a hack of Paranormal Inc..
Players take on the roles of junior high school students who investigate strange rumors and urban legends in their school and local community. At the end, they use the clues they’ve gathered to tell the truth behind the rumor.
May 20, 2025 at 5:57 PM
Bascinet

An old school TTRPG inspired by games like Cairn, MÖRK BORG, Troika! and OSE. OSR/NSR games are still not very well known in Japan, so it’s great to see a game like this being sold at Game Market. It would be great to see more OSR games made in Japan.
May 20, 2025 at 5:53 PM
The Japanese game convention "Game Market 2025 Spring," which focuses on analog games, was held in Tokyo last weekend.

I picked up some interesting Japanese indie TTRPGs there, and I’d like to share them with you. Unfortunately, I was only able to get a few this time.
May 20, 2025 at 5:50 PM
Japan has a lot of interesting history and folklore, so using the Hidden World of Japan in Liminal TTRPG is a cool idea. For example, in Japan, Fae might be seen as yokai, and there are unique styles of magic such as Onmyōdō.

Personally wrote a small supplement for Japan. Looks pretty cool, right?
May 12, 2025 at 4:52 PM
As for Liminal TTRPG streaming, I ran a campaign series inspired by the legend of the Dullahan(20 sessions!)
www.youtube.com/watch?v=dgAV...

My personal favorite is a campaign set in Kyoto, Japan. The hidden world of Japan is incredibly interesting!
www.youtube.com/watch?v=P6-a...
May 11, 2025 at 10:24 PM
I believe the Japanese localization of Liminal TTRPG has achieved a certain level of success.

Liminal is gradually gaining popularity in Japan, with dedicated conventions and streams helping to grow the community. And the cases based on British folklore, created by Japanese are all interesting.
May 11, 2025 at 10:14 PM
『グリーンドーンモール 日本語版』発売!

PDF版(96ページ)
¥1980 税込

現代を生きる10代の少年少女たちとなり、行方不明となった友人を探すため、グリーンドーンモールもと呼ばれる異界化した奇妙な裏ショッピングモールを探索するTRPGです。詳細はリンク先のストアページをご覧ください。
malstrom-store.com/items/680a20...
April 29, 2025 at 11:34 AM
I got a fantastic zine about shadowy reverse of the British countryside and folk horror. This zine is a brilliant source of inspiration for Liminal RPG.
March 1, 2025 at 5:12 PM
I have been waiting for this!
February 27, 2025 at 9:01 AM
In 2024, as a GM, I played various English indie TTRPGs with famous Japanese streamers, and introduced them to many Japanese fans.

For example, "Bar the Windows, Bolt the Doors", "Low Stakes", "Project Cassandra", etc.

I want to play more TTRPGs and introduce them to more people this year also.
January 19, 2025 at 9:43 AM
I got an anarchist fantasy TTPRG "Zephyr" from Araukana Media.

Look at this! The rulebook and these beautiful tokens in the box made me excited.
December 16, 2024 at 10:21 AM
We have released an English version of a Japanese indie TTRPG.

Pray by Letter is an epistolary tabletop role-playing game for 2 players in which you and your penfriend try to forge the future by exchanging letters.

now available on itch.io!

malstromrpg.itch.io/pray-by-letter
November 26, 2024 at 5:35 PM
The Japanese game convention "Game Market 2024(Autumn)", which focuses on analog games, was held on from November 16th to 17th. Although board games were the main focus of this game convention, but many TTRPG designers and scenario writers also attended.
November 20, 2024 at 8:21 AM