65		Mahjong Pretty Girls Battle (Windows, 2015)
64		Lamia's Game Room (Windows, 2016)
50		Queen of Tenshindo 95 (Windows, 1995)
50		Super Real Mahjong P7 (Windows, 1998)
50		Taisen Mahjong Final Romance 4 (Windows, 2002)
50		Taisen Mahjong Final Romance R (Windows, 1997)
50		Super Real Mahjong PV (Windows, 1995)
50		Super Real Mahjong P VI (Windows, 1996)
44		Shadowverse (Windows, 2016)
44		Planet Stronghold: Colonial Defense (Windows, 2016)
40		Poker Relay (DOS, 1990)

Notes: Games similar to Koi-Koi Japan, Games like Koi-Koi Japan, ZOO Corporation, ZOO Corporation, Windows, Strategy, Tactics, Anime, Manga, Cards, Tiles, 1st-person, Card, Tile game - Hanafuda, PC, Game Similarities.