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Connecting games to the future

Sieg Games Co., Ltd.

A company that develops and produces games with core technology

2024.1.29 Office moved​

2023.9.26 ​Notice regarding acquisition of Robo Applications, Inc.

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Our representative took the stage as a finalist in Japan's largest WEB3 game pitch contest "SHAKE! KYOTO" held at IVS Crypto 2023 KYOTO, and won a special prize (KONAMI Award) for the lifestyle-based NFT game "Play games! enrich our lives". was awarded.


We plan to continue the project, but we will close the Kickstarter for the time being.

Thank you very much for your support.

Thank you for your support.

Game production by creators who have developed leading titles

Introduction of our major creators

Yoichi Miyaji

Main works

"Gambler Egocentric"

"Lunar" series

"Grandia" series

"Super Smash Bros. X"

IP production in collaboration with many creators

LOOP8 (loop eight)

Genre Juvenile RPG

Compatible models Nintendo Switch™ / PlayStation®4 / Xbox One / Steam®

Release date Scheduled to be released on June 1, 2023 by Marvelous Inc.

*Only the Steam version will be released on June 7, 2023.

©2023 Marvelous Inc.

game design / scenario
​Yuri Shibamura

Main works

"Kōkidō Gensō Gunparade March"

​ "Touken Ranbu"

Character Design
​En Morikura

Main works

Virtual Talent "Kizuna AI"

Character Design
​Shingo Adachi

Main works

Anime "Sword Art Online"

"Musasa"Character Design
​Tatsuhiro Murayama

Main works

"Sakuna: Of Rice and Ruin"

concept art

Main works

"Amatsuki fox"

​Noriyuki Iwadare

Main works

"Ace Attorney" series (3/5/6) ​

Development Executive Producer
Yoichi Miyaji

Main works

"Grandia" series

"Lunar" series

theme song
​Qi Sui

Main works

Beijing 2022 Winter Olympics and Paralympics slogan PR song
“Together for a Shared Future”

We are actively working on the latest technologies such as AI, metaverse, and blockchain technology.

our company's


Partnerships with game-related companies

​Major production achievements

Cosmo Machia Co., Ltd.

"Mashiro Witch" ​​​

ITAKO Co., Ltd.

​ "Airpeak Flight"​​

Tsukishima Factory Co., Ltd.

​ "Bondage Boyfriend"

Riz Inc.

​ "LOOP8"

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