This review is part of a series on thematic OSR games (as defined here). Also note that some of the links below are affiliate links (meaning I get a small percentage of the sale without extra cost to you).
Ghastly Affair is a romantic horror game. It is a genre variation that features all the classic elements of D&D (classes, levels, hit points, to-hit and damage rolls, etc.). Mechanically the game strives for simplicity first and foremost, and the genre emulation part comes from the content (classes, spells, and antagonists) and referee advice.