43		A Week of Circus Terror (Windows, 2016)
40		Daughter of Serpents (DOS, 1992)
40		Jonathan (DOS, 1993)
40		Vampire's Castle Adventure (DOS, 1984)
40		Countdown 1: The Body (Windows, 2007)
40		The McCarthy Chronicles: Episode 1 (Windows, 2009)
40		Countdown 2: The Soul (Windows, 2007)

Notes: Games similar to 1HEART, Games like 1HEART, Chicken in the Corn, Chicken in the Corn, Windows, Adventure, Graphic Adventure, Puzzle elements, Horror, PC, Game Similarities.