ADICE Reveals Exhibition Information for Game Market 2025 Autumn; Pre-sells Board Game "Liar Seven" and Murder Mystery "Rebirth Metal Grandmother"
Note: the original Japanese article can be found at:
https://www.4gamer.net/games/991/G999110/20251029047/
Editorial Department: Akasaka | 2025/10/29 09:32 (UTC)
viviON’s analog game label “ADICE” has announced its participation in the upcoming event “Game Market 2025 Autumn,” to be held at Makuhari Messe on November 22 and 23, 2025. The booth number is A-44.
The new releases are the board game “Liar Seven” (¥2,970 including tax) and the murder mystery “Metal Grandmare Genesis” (¥3,980 including tax), both available for pre-sale at the event.
“Liar Seven” is a bluffing card game where players take on the role of noble aristocrats. Each player secretly places cards face-down while declaring numbers—these declarations do not have to be true. Other players may call out “You’re lying!” if they suspect deception. Using special ability-powered skill cards, players can even transform lies into truths.
“Metal Grandmare Genesis” is a sci-fi murder mystery that unravels the enigma of a grandmother who was unknowingly cybernetically transformed and destroyed. Though treatment succeeded, both grandmother and grandson lost their memories, prompting grandfather Kuu, mother Ee, son Shuji, and father Fuku to play “detective pretend.”
Visit “Liar Seven” product page
Visit “Metal Grandmare Genesis” product page
New releases: a bluffing game where you become a noble, and an SF murder mystery about uncovering the truth behind your broken grandmother! Analog game label ‘ADICE’ announces its participation in Game Market 2025 Autumn
[Limited quantity] Free distribution of simple puzzle gamebook “Keytail Detective Kii”!Analog game label ‘ADICE’ (operated by Vivion Co., Ltd., based in Chiyoda, Tokyo; Representative: Kozo Akashi) will be exhibiting at Game Market 2025 Autumn, taking place on November 22 (Saturday) and 23 (Sunday) at Makuhari Messe. We’re offering pre-sales of the new board game “Liar Seven” and murder mystery “Metal Grandmare Genesis,” along with demo play for “Liar Seven” and a free distribution of the simple puzzle gamebook “Keytail Detective Kii.”
If you’re considering attending Game Market, please stop by our booth (Area A-44) anytime!Event Participation Information
Game Market 2025 Autumn https://gamemarket.jp/
Venue : Makuhari Messe, Exhibition Halls 3–6
Dates : November 22 (Sat) 11:00–18:00
November 23 (Sun) 11:00–17:00
Exhibitor : ADICE
Booth Number: Area A-44
Activities : Game sales, demo play, free giveawaysThumbnail image No.002 / ADICE announces its participation in Game Market 2025 Autumn: Pre-sale of board game “Liar Seven” and murder mystery “Metal Grandmare Genesis” Thumbnail image No.003 / ADICE announces its participation in Game Market 2025 Autumn: Pre-sale of board game “Liar Seven” and murder mystery “Metal Grandmare Genesis”
[New Release 1] “You’re a liar!” — A fresh twist on bluffing games: the new card game “Liar Seven”
Players become noble aristocrats, secretly placing cards face-down while declaring numbers—there’s no need for truth. Other players may elegantly declare “You’re lying!” if they suspect deception. Successfully exposing lies earns you points! If the declaration was actually true, the player who accused loses points as a penalty.
The game’s unique charm comes from special ability cards. Use them to turn a lie into the truth in dire situations, or twist an opponent’s truth into a falsehood—spicing up the aristocratic evening with unexpected turns!
At the end of the night, the player with the highest total score will be hailed as the shrewdest noble of all. So play like true nobility and outwit your rivals to claim victory.
Don’t worry if you’re not confident in lies or psychological games! The key is to fully embrace being a noble and enjoy the game heartily. Why not make your debut tonight into the dazzling world of elegant deception and cunning?
— Try “Liar Seven,” a fresh take on beloved bluffing games, with original twists added for an entirely new experience!
Thumbnail image No.004 / ADICE announces its participation in Game Market 2025 Autumn: Pre-sale of board game “Liar Seven” and murder mystery “Metal Grandmare Genesis” Thumbnail image No.005 / ADICE announces its participation in Game Market 2025 Autumn: Pre-sale of board game “Liar Seven” and murder mystery “Metal Grandmare Genesis”
[Product Information]
Liar Seven
Genre : Bluffing, Roleplay, Card Game
Number of Players: 3–5
Age Range : 8 years and up
Playtime : ~20 minutes
Price : ¥2,970 (including tax)
Sales : Pre-sale at Game Market 2025 Autumn (includes exclusive event promo card)
Later available on various e-commerce sites including ‘viviON BLUE’
Design & Production: Vivion Co., Ltd.
Official Page: https://adice.vivion.jp/liarseven
PV : https://www.youtube.com/watch?v=hqBF29v6Ed8[Available for demo play at the event!]
At ADICE’s booth within Game Market, staff dressed as nobles will welcome visitors. Please come try “Liar Seven” and experience the elegant intrigue of aristocratic deception firsthand! Feel free to shout “You’re lying!” or “Your origins are revealed!”—whether you’re meeting new friends or playing with close companions.[New Release 2] “Grandma’s broken!” — A sci-fi murder mystery unraveling the mystery of a destroyed grandmother, “Metal Grandmare Genesis”
Early 2000s. Japan. An ordinary family’s peaceful life suddenly collapses.
“Grandma broke!”
Mother Ee scolds her son Shuji for saying such things as she rushes to her mother-in-law’s room—Grandmother Koji. But there, she finds a horrifying sight: Grandmother Koji with her head destroyed, sparking and short-circuiting. Artificial skin torn open, exposed mechanical bones creaking like convulsions.Mother grabs a fire extinguisher from the kitchen to suppress the flames before they spread. She immediately calls for medical help via mobile phone and attempts emergency treatment. Miraculously, the procedure succeeds—Grandmother Koji regains her original form. But when she awakens, she has no memory.
That night, an emergency family meeting was held. The four gathered at the dining table: Shuji, Ee, Grandfather Kuu, and Father Fuku, just home from work. A family member—an elder—had been secretly cybernetically transformed, then destroyed. Yet everyone remained oddly calm, creating a strange atmosphere.
Though formally a discussion, an air of mutual suspicion hung in the room; conversations drifted apart with no real progress. Everyone claimed ignorance—but none could fully convince others. Eventually overwhelmed by tension, Shuji breaks silence:
“Let’s just investigate together! Let’s play detective!”
It seemed like an absurd suggestion—yet its childlike innocence unexpectedly shifted the mood. Each had their own thoughts. After a pause, all nodded in agreement.
With private motives in mind, “detective pretend” quietly began.
Thumbnail image No.008 / ADICE announces its participation in Game Market 2025 Autumn: Pre-sale of board game “Liar Seven” and murder mystery “Metal Grandmare Genesis” Thumbnail image No.009 / ADICE announces its participation in Game Market 2025 Autumn: Pre-sale of board game “Liar Seven” and murder mystery “Metal Grandmare Genesis”
※ The playable characters in this game are Shuji, Ee, Fuku, and Kuu. Playing as the “Metal Grandmother” is not possible—please note this in advance.
[Product Information]
Metal Grandmare Genesis (pronounced: SAIKI METALU SOBO)
Genre : Sci-fi Murder Mystery
Number of Players: 4 (GM-less)
Age Range : 15 years and up
Playtime : ~120 minutes
Price : ¥3,980 (including tax)
Sales : Pre-sale at Game Market 2025 Autumn
Later available on various e-commerce sites including ‘viviON BLUE’
Scenario & Game Design: Toraishi
Illustrations: Hyo Umi Shizu
Official Page: https://adice.vivion.jp/product/metalgrandmaregenesis
PV : https://www.youtube.com/watch?v=J0M3B3bIsd8[Special Purchase Bonus at the Event]
“Metal Grandmare Genesis” will be available for purchase at both ADICE’s booth (Area A-44) and a dedicated murder mystery booth. In either case, buyers will receive a special bonus: an exclusive large acrylic keychain (non-sale item).Limited quantity – FREE GIVEAWAY! Simple puzzle gamebook “Keytail Detective Kii”
At the ADICE booth, we’ll be distributing the simple puzzle gamebook “Keytail Detective Kii” free of charge—limited quantities available both days. Join detective Kii in solving mysterious events around town! Distribution will end once daily limits are reached—please come by early if interested! (Recommended age: 8 years and up)
Scenario & Game Design: Chikarunari
Illustrations: Hujaku