A 68k file extension is related to the SEGA Mega Drive and Genesis Classics emulator. A 68k file contains ROM image.
Software that open 68k file
68K file extension - Sega Mega Drive ROM image
What is 68k file? How to open 68k files?
File type specification:
The 68k file extension is associated with the SEGA Mega Drive and Genesis Classics, official emulator of Sega Mega Drive and Sega Genesis video gaming consoles, developed by Sega.
The 68k file contains official ROM image distributed by Sega for this emulator.
The default software associated to open 68k file:
SEGA Mega Drive and Genesis Classics 
Company or developer:
Sega Corporation
Sega Genesis and Mega Drive Classics, is a series of compilations and emulator featuring Sega Genesis and Mega Drive video games released for Microsoft Windows and distributed via Steam service.
List of recommended software applications associated to the .68k file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open 68k file, edit 68k file, convert 68k file, view 68k file, play 68k file etc. (if exist software for corresponding action in File-Extensions.org's database).
Software that open 68k file - Sega Mega Drive ROM image
Programs supporting the exension 68k on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open 68k file action.
Microsoft Windows:
Main software associated with 68k file by default:
SEGA Mega Drive and Genesis Classics
Other suggested software:
MAME
