.GEN File Extension

Sega Genesis ROM

Developer N/A
4.1  |  28 Votes

What is a GEN file?

A GEN file is a game ROM used by Sega Genesis and Mega Drive emulators. It is a copy of the game data stored on a Genesis or Mega Drive game cartridge. GEN files allow gamers to play Genesis and Mega Drive games on their PCs, using emulators such as Kega Fusion or Genesis Plus.

More Information

The Sega Genesis, known as the Sega Mega Drive outside North America, is a video game console that was originally released in 1988. Sega released many popular games for the Genesis, including a number of games in the Sonic the Hedgehog series.

Gamers who want to play classic Genesis games on their PCs can do so by downloading a Genesis emulator and using it to load a Genesis game ROM, which is a copy of a Genesis game. Genesis game ROMs are most often saved as GEN files. Some Genesis ROMs are saved as .SMD and .BIN files; all can be used in any Sega Genesis emulator.

How to open a GEN file

You can open a GEN file and play the video game it contains in any of the following Sega Genesis emulators:

  • Kega Fusion (cross-platform)
  • Gens+ (Windows)
  • Genesis Plus (Mac)
  • MD.emu (Android)
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Programs that open GEN files


ArcView ARC/INFO UnGenerate file

Developer ESRI
3.4  |  8 Votes

Data file exported by ArcView, a GIS software program for visualizing and analyzing geographic data; contains information associated with an ArcInfo .E00 file.

More Information

NOTE: ArcView is part of the ESRI ArcGIS Desktop GIS software.

Programs that open GEN files

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