From Sega Retro
After successfully launching the Sega Saturn, Sega retrospectively gave different codenames from the planets in the Solar System to recently released projects, and used 2 more planets after Saturn for subsequent projects, in order to make sorting documentation out easier in the future.
|Mercury||Sega Game Gear|
|Jupiter||Cart-based 32-bit system; abandoned in planning stages in favor of a disc-based system that became known as...|
|Uranus||Unused. Hiroyuki Miyazaki offered a few explanations for this, saying when pronounced in Japanese it sounds like "Uranu" or "won't sell", what he called "an ominous name for a project."|
|Neptune||32X/Mega Drive combo unit|
|Pluto||Sega Saturn prototype unit featuring a different shell with a NetLink Internet Modem accessory built in. Only two produced. Uses US BIOS.|
Furthermore, hardware released around the time the Saturn was had codenames based on Saturn's moons:
|Titan||Sega Titan Video|
|Janus||Sega Picture Magic|
By the time the Sega Dreamcast was planned, Sega had moved on to a new scheme. However during the development of the Mega Drive Mini, due to an urban legend about Earth being the Mega Drive's codename, Hiroyuki Miyazaki decided to give the Mega Drive Mini the codename of "Moon".
In addition to using space-themed codenames for its consoles, the initial lineup of Saturn games also used codenames internally, this time as constellations:
|Blue Seed: Kushinada Hirokuden||Chamaeleon||カメレオン|
|Clockwork Knight: Pepperouchau no Daibouken Joukan||Apus||エパス|
|Gotha: Ismailia Seneki||Pegasus||ペガサス|
|Kanzen Chuukei Pro Yakyuu Greatest Nine||Ara||アラ|
|Kisuishou Densetsu Astal||Centaurus||セントーラス|
|Mahou Kishi Rayearth||Delphinus||デルフィナス|
|Pebble Beach Golf Links||Canis Major||カニスメジャー|
|Shinsetsu Yumemi Yakata: Tobira no Oku ni Dareka ga...||Coma||コマ|
|Shin Shinobi Den||Auriga||アリガ|
|Wing Arms: Kareinaru Gekitsuiou||Antares||アンタレス|
|World Advanced Daisenryaku: Koutetsu no Senpuu||Aries||アリエス|
Only three were ever used in public:
- Panzer Dragoon's "Andromeda" codename became the name of development team behind it, Team Andromeda. They would go on to produce the two Saturn sequels; Panzer Dragoon Zwei and Panzer Dragoon Saga.
- Victory Goal's "Aquila" codename was also used as a team name, and was seen again in sequel Victory Goal '96.
- Wing Arms was (accidentally?) named as "Antares" in early promotional material.
|Sega Home Video Game Systems|
|SG-1000||SG-1000 II||Mega Drive||Mega Drive II|
|SC-3000||Mega-CD||Mega-CD II||Genesis 3|
|Sega Mark III||32X||Dreamcast|
|Master System||Master System II|
|AI Computer||Game Gear|