The 32X is an add-on for the Sega Genesis video game console. Codenamed "Project Mars", the 32X was designed to expand the power of the Genesis and serve as a holdover until the release of the Sega Saturn. Independent of the Genesis, the 32X used its own ROM cartridges and had its own library of games, as well as two 32-bit central processing unit chips and a 3D graphics processor. Despite these changes, the console failed to attract either developers or consumers as the Sega Saturn had already been announced for release the next year. In part because of this, and also to rush the 32X to market before the holiday season in 1994, the 32X suffered from a poor library of titles, including Genesis ports with minor improvements such as the number of colors that appeared on screen. Originally released at US$159, Sega dropped the price to $99 in only a few months and ultimately cleared the remaining inventory at $19.95. 800,000 units were sold worldwide.
There were 40 games produced worldwide, including six that required both the 32X and the Sega CD add-ons, and ten that were only released in North America, as well as only one released exclusively for Brazil. Games that were announced or reported to be in development for the 32X, but never released, are listed at the list of cancelled 32X games.