The first game adaptation of "The Farble" and a demo for "MOCHI-O," themed around hamsters, are now available on Steam
Note: the original Japanese article can be found at:
https://www.4gamer.net/games/838/G083877/20251009044/
Editorial Department: Chihiro | 2025/10/09 09:39 (UTC)
Kodansha Game Lab has today (October 9, 2025) released demo versions of two new PC titles on Steam: “The Farb Manga Build Roguelike” and “MOCHI-O (mochi-o)”. Additionally, the demo for “Hamukoi - My Sweet Days with Three Sisters After Reincarnating as a Hamster” is scheduled to be released on Steam after passing review.
Furthermore, all three titles have been confirmed to participate in the upcoming Steam Next Fest, which begins early on October 14.
“The Farb Manga Build Roguelike” is the first-ever video game adaptation of “The Farb,” a manga series that has sold over 28 million copies and was adapted into both an anime and live-action film.
In the demo version, players can enjoy playing as Akira in Normal Mode. Additionally, part of the high-difficulty “Puzzle Mode” is included.
Next up is MOCHI-O (mochi-o), a post-apocalyptic defense adventure where you raise Mochi—a weapon resembling a hamster—to protect your nation. In the demo version, players can experience early story segments and stages, as well as part of the greeting section that enhances interaction with Mochi.
The third title, “Hamukoi - My Sweet Days with Three Sisters After Reincarnating as a Hamster,” is a collaboration between the magazine Friday and Kodansha Game Lab. In this live-action romance simulation game, players experience life from a hamster’s perspective, being pampered by three beautiful sisters portrayed by Shiori Ikemoto, Momoha Takagatsu, and Sayaka Tomaru. The demo allows you to enjoy up to three episodes of each heroine’s story.
First-Time Game Adaptation of “The Farb”! Plus Two Hamster-Themed Games!! Kodansha Game Lab Launches Demos for Three New Titles, and All Three Will Be Featured at Steam Next Fest Starting October 14!
Kodansha Game Lab has today launched demo versions of two titles on Steam: “The Farb Manga Build Roguelike” and “MOCHI-O (mochi-o).” The demo for “Hamukoi - My Sweet Days with Three Sisters After Reincarnating as a Hamster,” which features a collaboration between Friday magazine and Kodansha Game Lab, will be released on Steam after passing review.
This marks the first game adaptation of “The Farb” along with two other titles featuring hamsters in entirely different ways. The demo versions for all three games have also been confirmed to participate in the upcoming Steam Next Fest, starting early October 14.
[Steam Store Page] “The Farb Manga Build Roguelike”: https://store.steampowered.com/app/3187880/ “MOCHI-O”: https://store.steampowered.com/app/3596670/ “Hamukoi - My Sweet Days with Three Sisters After Reincarnating as a Hamster”: https://store.steampowered.com/app/3815800
“The Farb Manga Build Roguelike” is scheduled for release on Nintendo Switch and Steam on November 6, 2025. “MOCHI-O” will be released on Steam, iOS, and Android later in 2025. “Hamukoi” is also slated for a Steam release within 2025. The demos offer an early taste of the full game experience—be sure to try them out!
“The Farb Manga Build Roguelike”
Build manga panels by arranging comic “cells” to battle—manga × tactical puzzle × roguelike
(Demo available on Steam / Product version scheduled for release on November 6, 2025, on Nintendo Switch and Steam)
- Steam Store Page: https://store.steampowered.com/app/3187880/
- Trailer: https://www.youtube.com/watch?v=2rGAWAjVGSE
“The Farb Manga Build Roguelike” is the first video game adaptation of “The Farb,” a best-selling manga from Weekly Young Magazine that has sold over 28 million copies and was adapted into both live-action film (starring Junya Ogata) and anime. This unique title fuses manga, tactical puzzle, and roguelike elements with flexible thinking, meticulous strategy, and stylish action animations rendered in pixel art.
The game features a unique “Manga Construction Battle” system: each turn, players place “cells” on the page to determine commands and actions. Each cell has distinct effects such as attack, ranged strike, movement, or defense, and they activate in order from top-right to bottom-left. Success hinges on accurately assessing each cell’s effect, shape, and activation sequence.
Victory requires eliminating all enemies within a time limit. Taking damage causes the page to “tear,” reducing available placement area for the next turn—requiring constant strategic balance between offense and defense. This game challenges players’ “wisdom and ingenuity.” Arrange your cells wisely, craft the optimal single panel, and defeat your foes!
The demo includes playable content for Akira in Normal Mode among the three characters (Akira, Yoko, and Suzuki) featured in the full game. It also features part of the high-difficulty “Puzzle Mode,” where players must defeat all enemies within one page (one turn). Challenge it using your wisdom and creativity!
Thumbnail image for Gallery No.005 / Demo versions of “The Farb,” the first game adaptation of the manga series, and “MOCHI-O,” themed around hamsters, are now available on Steam
[Creator Profile]
mono
Graduated from the Game Design Department at New York University. Notable works include “IGNISTONE” (GCL Second Phase Support Project), “Clock Rogue,” and “AI-Created Spells.” Passionate about inventing novel game systems.
“MOCHI-O”
Raise a cute weapon to defend your nation in this post-apocalyptic defense adventure
(Demo available / Product version scheduled for Steam release later in 2025)
- Steam Store Page: https://store.steampowered.com/app/3596670/
“MOCHI-O” is a post-apocalyptic defense adventure in which players raise Mochi—a weapon resembling a hamster—to protect their country. While Mochi looks like a hamster, it’s actually a handheld anti-invasion device. Despite its adorable appearance, it carries various weapons and clears enemy forces attacking the city. Your mission as a caretaker is to watch over, nurture, and grow Mochi in order to defend your nation from external threats.
The main gameplay consists of tower defense and character cultivation (and of course, spoiling Mochi!). Aim at enemies to attack, earn experience points by collecting “seeds,” upgrade Mochi’s skills, and gain tactical advantages in battle.
By spending money and seeds earned in battle, players can strengthen Mochi or acquire advantageous weapons for future fights. Before deployment, you can pet Mochi to temporarily boost its stats! The gentle banter between characters outside combat is another highlight of this title.
The demo includes early story segments, stages, and a portion of the greeting section where interaction with Mochi increases. Experience the game’s satisfying feel and the unique atmosphere of this “gentle post-apocalyptic world.”
Thumbnail image for Gallery No.009 / Demo versions of “The Farb,” the first game adaptation of the manga series, and “MOCHI-O,” themed around hamsters, are now available on Steam
[Creator Profile]
jiima
Began independent game development in 2017 and has released ten titles including “Parasite Days” and “Post-Apocalypse Bakery.” Known for unique game systems and mysterious worldviews centered around gentle post-apocalyptic settings. His title “Catastrophe Restaurant” won Top 3 at the Google Play Indie Games Festival 2022.
“Hamukoi - My Sweet Days with Three Sisters After Reincarnating as a Hamster”
A collaboration between Friday magazine and Kodansha Game Lab, this is an unprecedented “spoiled” adventure!
(Demo available / Product version scheduled for Steam release later in 2025)
From left: Shiori Ikemoto, Momoha Takagatsu, Sayaka Tomaru Thumbnail image for Gallery No.010 / Demo versions of “The Farb,” the first game adaptation of the manga series, and “MOCHI-O,” themed around hamsters, are now available on Steam
- Steam Store Page: https://store.steampowered.com/app/3815800/
- Trailer: https://www.youtube.com/watch?v=uRaR3DpdDB4
“Hamukoi - My Sweet Days with Three Sisters After Reincarnating as a Hamster” is a live-action romance simulation game where players experience life from the perspective of a pet hamster, being doted on by three beautiful sisters. Enjoy sweet moments like sleeping together or getting fed—experiences unique to being a hamster. As you spend time in the same space with them, you’ll begin to uncover each sister’s personal struggles and secrets. Make choices as your tiny hamster body navigates big problems!
When you successfully satisfy all three sisters, you’ll unlock a sexy & cute 4K bonus video! Enjoy an experience no human could ever have—the envy of the entire world as a hamster!
The demo allows players to enjoy up to three episodes from each heroine’s story.
[Cast Information]
Eldest sister: Hikari Himari
Sayaka Tomaru (born 1996, Gunma Prefecture): A top-tier gravure idol in Japan who celebrated her 10th anniversary since debut in 2024. Active in drama, film, and variety shows. Hobbies include saunas.
X: https://x.com/tmr_syk_
Instagram: https://www.instagram.com/tmrsyk
TikTok: https://www.tiktok.com/@tmrsyk
Second sister: Futaba
Momoha Takagatsu (born 2003, Hokkaido): Began ballet at age two and studied in Switzerland and Belgium. Made her entertainment debut after appearing on a dating reality show in 2022. Also active as a member of the idol group “Kimi to Miru Sora.” Hobbies include violin.
X: https://x.com/sweets_suki3
Instagram: https://www.instagram.com/momoha2003523
TikTok: https://www.tiktok.com/@sweets_suki3
Youngest sister: Miyu
Shiori Ikemoto (born 2002, Hyōgo Prefecture): Finalist in “Seikyō ‘20,” a gateway for aspiring actresses and talents. Active as a member of the idol group “Teratera.” Hobbies include saxophone.
X: https://x.com/teratera_shiori
Instagram: https://www.instagram.com/shiori_ikemoto/
TikTok: https://www.tiktok.com/@teratera_shiori