Mebius

Japanese game development studio specializing in console ports and original visual novel / adventure titles. Notable for the Japanese Nintendo Switch and PS4 port of Tokyo Dark (2018, with publisher UNTIES / Sony Music Entertainment) and the PS Vita release of Gnosia (with Petit Depotto). Active since at least 2015 with mostly Windows and Switch credits. 2026 UPDATE: MAJOR — Mebius (founded April 14 2005, HQ Shimorenjaku, Mitaka, Tokyo) is working on a reboot of the 2001 PS1 RPG Oni Zero: Revival with a playable Nintendo Switch demo (per RPGSite/Gematsu, 2026); recent slate per official site: Elminage Original Switch edition released Feb 5 2026, BURAI MSX2 COMPLETE out Feb 19 2026, Touhou Shoujo Kishou Tan Nov 2026; 27 Moby credits 1999-2025 incl. Steel Empire Chronicles (2025, Switch); dev + publisher of console ports and original adventure/VN titles.

• Type: Publisher · Buyer
• Headquarters: Japan
• Data updated: 5 Nov 2026

Key facts

• According to Games Atlas analysis of shipped-game credits, Mebius published or developed 10 games released 2015–2021.
• Games Atlas data shows 3 of 4 Mebius titles with known production credits (75%) used external service partners.
• The most frequent external partner on Mebius titles is Starfish-SD Inc. (3 shared credits, 2017–2018).

What Mebius outsources and how open it is to new partners

The verdict rates how hard it is for a new vendor to win work in each discipline, from how much work goes outside, how concentrated it is among incumbents, and how often new partners entered in the last three years.

• Publishing: No recent data: company-wide credits have gone quiet. 5 of 9 credited titles used external partners (56%); 10 external partners, largest Starfish-SD Inc. (25% of outsourced volume); 0 outsourced and 0 new partners since 2023. Confidence: low.

External partners proven by shipped credits

• Starfish-SD Inc. — Lead & co-development, Publishing, 3 shared credits, 2017–2018
• Althi (Riverhillsoft) — Lead & co-development, Porting services, 2 shared credits, 2017–2017
• RS34 — Lead & co-development, 1 shared credits, 2021–2021
• ININ Games — collaboration, 1 shared credits, 2022–2022
• Sekai Design — Publishing, 1 shared credits, 2018–2018
• Project Rolling Gunner — Lead & co-development, Publishing, 1 shared credits, 2018–2018
• United Games Entertainment — Publishing, 1 shared credits, 2022–2022
• Programming Lab Tasuya — Porting services, 1 shared credits, 2017–2017
• Daifuku Future Lab — Lead & co-development, 1 shared credits, 2017–2017
• Fontworks — Art, assets and fonts production services, 1 shared credits, 2017–2017
• Nikkatsu Corporation — Lead & co-development, 1 shared credits, 2017–2017
• Virtual East Corporation — Additional development & engineering, 1 shared credits, 2017–2017
• Joyfulstar — Lead & co-development, Publishing, 1 shared credits, 2018–2018
• Petit Depotto — Lead & co-development, 1 shared credits, 2015–2015
• G-mode — Publishing, 1 shared credits, 2017–2017
• D4Enterprise — Publishing, 1 shared credits, 2017–2017
• Teyon — Publishing, 1 shared credits, 2015–2015
• D3Publisher Inc. — Publishing, 1 shared credits, 2017–2017
• Opera House Inc. — Additional development & engineering, 1 shared credits, 2017–2017
• Basiscape — Audio design and production services, 1 shared credits, 2017–2017
• Aksys Games — Publishing, 1 shared credits, 2017–2017
• Triangle Service — Lead & co-development, 1 shared credits, 2019–2019

Methodology

Source: Games Atlas (gamesatlas.app), based on MobyGames production credits for games released from 2015 onwards and Games Atlas analysis. One game counts once regardless of platforms or editions. Games Atlas does not estimate revenue or report the performance of individual games. Profile: https://gamesatlas.app/companies/mebius