Konami‘s “Akumajō Dracula” was first released in 1986 for the MSX2. It set the template for a series that is still going (relatively) strong to this day – the Castlevania series.
This MSX game was also the first game in the Castlevania series to be given an English language release, and it was released in 1987 in Europe under the title of “Vampire Killer“, which then changed to “Castlevania” when the North American NES version of this game was released on cartridge.