I’d like to add an honorable mention and that is 90’s Arcade Racer from Pelkan13.
What started out to be an ambitious homage to Sega for the Wiiu and PC turned into a no show for PC and Wiiu as well as Ps4 or XB1 for that matter. Despite him saying that it was still coming… it’s been way to long and no updates. It’s initial estimated release was November of 2013.
He has since turned his attention to a streets of rage clone called The Takeover which is also still not out yet.