The heavily delayed mega drive brawler “PAPRIUM” is supposed to be released till end of October 2018! According to their post on their Facebook page, as they write:

“Regarding what’s going on:
We had an issue with the “DATENMEISTER” chip-set manufacturing which resulted in some last minute changes. I’ve worked round-the-clock for the last couple of weeks to find a workaround and been very scarce on updates, my apologies.
In the next (couple) days we have to adjust the game to reflect those changes. Moreover, in the mean time, there will be an additional round of QC and testing. [….] [….] Our aim is to deliver the ultimate Mega Drive / SEGA Genesis game, in time for the system 30’th anniversary.”

Which would be October, 29th, 1988 according to Wikipedia.