Tengen was a subsidiary of Atari Games Corporation under which home conversions of Atari Games' arcade games were developed and published. Tengen also published conversions of other manufacturers' arcade games, including Sega, Namco and Toaplan. Most of Tengen's NES releases were not licensed by Nintendo and Tengen faced a lawsuit because of this. In the early 1990s, Tengen also published several original games from various developers. The Tengen division was renamed to Time Warner Interactive (California) Inc. after Time Warner bought Atari Games Corporation in 1993.

After the business was sold to WMS Industries, the name was reverted to Tengen, Inc. However, the company was inactive until it was finally dissolved in 1999.