64		Carpe Lucem: Seize the Light (Windows, 2016)
62		Crayon Physics Deluxe (Windows, 2009)
62		Crayon Physics (Windows, 2007)
60		Drop-Drop (DOS, 1992)
60		H2O (DOS, 1996)
60		Alchemyst (DOS, 1992)
60		Rock-Slide (DOS, 1989)
60		Pakoon III: First Blood (Windows, 2008)
60		No IQ (Windows, 1999)
54		The Bloobles and the Quest for Chocolate (Windows, 2018)
50		Jiji no Tamagoyasan (Windows, 1996)
50		Time Race (DOS, 1990)

Notes: Games similar to Flappy, Games like Flappy, dB-SOFT, dB-SOFT, Windows, Puzzle, Real-Time, Side view, Fixed, Flip-screen, PC, Game Similarities.