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The Sega 32X is an add-on for the Sega Mega Drive video game console by Sega.

In Japan, it was distributed under the name Sega Super 32X (セガ スーパー32X Sega Sūpā Sātītsū-Ekkusu?). In North America, its name was the Sega Genesis 32X. In Europe, Australia, and other countries that use PAL, it was called the Sega Mega Drive 32X.

In the Sonic the Hedgehog series, the Sega 32X is best known for being the exclusive system for the game Knuckles' Chaotix.

Characters introduced

Market history

With the release of the Super Famicom in Japan and the Super NES in North America, Sega felt the need to leapfrog Nintendo in the technological department. The Sega Mega-CD, known as Sega CD in North America, had not worked as well, in a business sense, as Sega had wanted it to. Sega had various developments underway and focused most of its energy on the then new Sega Saturn. Some used System 16 technology, as the Sega Mega Drive and other arcade games did.

The 32X was released in mid-November 1994 in North America for $159, Japan on 3 December 1994 for ¥16,800, and Europe in January 1995 for £170 / DM400.

Technical aspects

The Sega 32X can only be used in conjunction with a Mega Drive/Genesis system. It is inserted into the system like a standard game cartridge, although it does require its own separate power supply and a cable linking it to the Mega Drive. Without the cable to the Mega Drive, the sprite layer is invisible. Besides playing its own cartridges, it also acts as a pass through for Mega Drive games, so it can be used as a permanent attachment (despite rumors that the cartridges for the Genesis could be damaged when played on the 32x). Also, Sega's Power Base Converter, which allows one to play Sega Master System games on a Mega Drive/Genesis, could not be used with the 32X attached. This is because the Power Base Converter uses all of the connection pins in the Mega Drive/Genesis itself, but the 32X only passes through those connections that are necessary to play games.

The 32X came with a spacer so it would fit properly with the Mega Drive II. Without the use of the spacer on a Mega Drive II, some of the 32X hardware was left exposed and vulnerable.[1] It could be used with the Sega Multi-Mega/Sega CDX system, but the spacer would not accommodate the CDX, which created a number of user-unfriendly conditions in the unit. Although the 32X's included instructions depicted a new adapter piece being used inbetween the two consoles, said adapter piece was ultimately never released. The combined unit was also very prone to tipping over backwards, risking damage to the unit and games. In addition to the physical problems, there was also an issue with FCC approval, although issues resulting from using the 32X with a CDX are not widely known. The 32X is also compatible with JVC's Wondermega/X'eye, although attaching the 32X will obstruct the console's CD door from opening.

In addition to regular cartridge-based 32X games, there were also a very small number of CD-ROM games for the 32X. These games were labeled with Sega Mega-CD 32X (Sega CD 32X in North America). As the name suggests, these required both the 32X and Mega-CD/Sega CD addons. The lack of a significant userbase due to the high cost of purchasing all three necessary components saw only five games released, only one of those developed by Sega.[2] The most notable of these was a new version of the infamous Night Trap with 32,768 onscreen colors instead of the 64 found on the regular Mega-CD/Sega CD version.



On 8 January 1994, Hayao Nakayama, then CEO of Sega, ordered his company to make a 32-bit cartridge based console that would be in stores by Christmas 1994. This would at first be named "Project Jupiter", but after Sega found CD technology cheaper, they decided to modify it instead of dropping the cartridge project (that would be called "Project Saturn"). Hideki Sato and some other Sega of Japan engineers came over to collaborate about the project with Sega of America's Joe Miller. The first idea was a new Mega Drive/Genesis with more colors and a 32-bit processor. Miller thought that an add-on to the Mega Drive/Genesis would be a better idea, because he felt that gamers would not buy an improved version of the Mega Drive/Genesis. And so, this project was codenamed Project Mars, and Sega of America was going to shape the project.

The 32X was primarily envisioned as a system which would extend the life of the Sega Mega Drive/Genesis and provide revenue while the installed userbase of the Sega Saturn slowly grew.


The video-gaming public first got a glimpse at the Summer 1994 CES in Chicago. The console was unmasked as the 32X, with a price projection of $170 (USD), at a gamers' day, held by Sega of America in September 1994.

The 32X hit the market in North America in November 1994, during the same month the Sega Saturn was released in Japan. Many industry insiders speculated that the 32X was doomed from the beginning as the Sega Saturn hardware was widely regarded as more powerful than the 32X and had the support of many Japanese third party software developers (a necessary resource required for any gaming platform's long term success) which the 32X was sorely lacking.

Only 500,000 consoles had been produced for North American consumption, yet orders were in the millions. The console allegedly had numerous mechanical problems. Games had been rushed for the system in the run up to Christmas 1994. Some early games came with errors in programming, causing crashes and glitches on certain titles. Other games required leaving out parts in order to make the Christmas deadline; for example, the 32X version of Doom is missing seven levels present on the PC and even the Super Nintendo version; plus, Doom for the 32X was criticised for having far dreadful music and sound efffects compared to the Super Nintendo version.[3] Some consumers complained that their 32X was not working with their Mega Drive/Genesis or television and Sega was forced to give away adapters.

Since this was an expensive add-on system, Sega decided to offer a £50 discount on games with the console in Europe. However, the offer came in the form of rebate vouchers, which were difficult to take advantage of.

Launch titles


North America and Europe


By mid-1995, development for 32X was in decline. Developers and licensees had abandoned the console in favor of what they perceived to be a true 32-bit console, the Sega Saturn. Even though the 32X was a 32-bit system, the games did not appear to take full advantage of 32 bit processing; many games were rushed and produced in 2D. Many were just slightly-enhanced ports of Genesis or old arcade games such as Space Harrier. In reality, as stated by Steve Snake, creator of NBA Jam, NBA Jam T.E. and Mortal Kombat II, these games were seriously pushing the limits of the console even though they looked like minor enhancements. He cites that people were expecting far too much from it, and over-hyping from magazines had helped to hurt it.[4]

Customers perceived the Sega Saturn, Nintendo 64, and the Sony PlayStation as the true next-generation consoles, due to their rich launch titles and 3D graphics.

Store shelves became littered with unwanted Sega 32X systems, and prices for a new one dropped as low as $19.95 (some have claimed that video game exchange stores became so filled with 32X systems, the stores refused to accept the console—even at no cost[5]). Sega planned a console named the Sega Neptune, which would have been a Mega Drive/Genesis and 32X in one. However, by the time a prototype was developed, the Sega Saturn was going to be released, and Sega canceled the Neptune.

For many years prior to the 32X, console makers promised devices like the 32X (for consoles such as the ColecoVision, Intellivision II, and some Atari systems) that would extend and enhance the original system. Sega's 32X effort lacked the software titles and 3D capabilities the gaming community demanded; the add-on technology represented a dead end, ultimately punishing early adopters. Ignorant of the idea that console systems' primary strength is in standardization, Sega had created three different platforms (the Sega Mega Drive, and the Mega-CD/Sega CD and the 32X add-ons) all under the same banner, stealing valuable shelf space from itself and confusing both vendors and consumers in the process. The entire episode demonstrated that producing such add-ons is likely to have detrimental effects on a system's brand marketing strategy.

The final nail in the coffin for the peripheral came in October 1995, when Sega's CEO, Hayao Nakayama, ordered that the 32X and other Sega consoles be cancelled in order to focus its limited resources on the Saturn system.[4][6]

Sega Neptune

Sega Neptune

The Sega Neptune was a two-in-one Mega Drive/Genesis and 32X console which Sega planned to release in 1994 or 1995. Sega had admitted how expensive and problematic the 32X was,[7] so it was decided to make a combined version of the Mega Drive/Genesis and 32X; however, by the time a prototype came out, the Sega Saturn was ready for release. Sega felt that consumers would not be interested in the Sega Neptune, so the project was scrapped. There are several prototypes, and at least one was declared to work.

Electronic Gaming Monthly used the Sega Neptune as an April Fool's joke in its April 2001 issue. The issue included a small article in which the writers announced that Sega had found a warehouse full of old Sega Neptunes, and were selling them on a website.[8]


  • There are forty games released for the 32X, but seven games were cancelled.
  • Most 32X games cannot be played unless the distribution region of the game matches the region of the console. A few games are not locked and can be played on a console from any region.


  1. 32X hardware pack-ins. Retrieved on 2007-06-22.
  2. North American 32X/CD 32X releases. Retrieved on 2007-06-22.
  3. Doom for the 32X. Retrieved on 2008-04-29.
  4. 4.0 4.1 Project Mars: Anatomy of a Failure. Retrieved on 2007-06-22.
  5. 32X Info. Retrieved on 2007-06-22.
  6. 32X history. Retrieved on 2007-06-22.

External links

  • Sega 32X at Wikipedia, the free encyclopedia.