Nice topic.
GX4000 might be a contender for shortest time between first and last software release.
C64GS didn't last long, but seeing as it was compatible with C64 game cartridges the first compatible game released for it came out 8 years before the console ...
SuperGrafx only had seven games released for it, but not all were launch titles (it was also backwards compatible with PC-Engine games though).
Sega stopped supporting Dreamcast in 2007, games released since then aren't officially licenced.
Monday 2-Apr-2007 11:31 AM
Repair service aborted, GD-ROM production ceased
Sega's Dreamcast repair service, which has continued to operate despite production of the console having been halted in 2001, will cease from September 28, hammering the final nail into Dreamcast's coffin.
This news comes after production of the GD-ROM, Sega's proprietary discs used for Dreamcast, having been aborted in February. This puts an end to the few Japanese releases which, oddly, still snuck out from time to time, Trigger Heart Exelica and Karous being two released this year.
This could also mean the end for Sega's Dreamcast-based Naomi arcade machines, which also use the GD-ROM format, although it is suggested that developers may be able to continue using ROM boards as an alternative on the machine.
This also marks a complete end to Sega's involvement in the hardware market. We're wiping a tear from our eye...
Link
Here's a DC game getting released this year, but the small print says:







