I think all the games I’ve played, with the exception of a few Viper series chapters, were fun. It’s hard to grade any of them with differential degrees of sexual explicitness since they were all fairly story heavy. Here’s my list of great games I’ve played:
Hobibox Europe:
Viper M1: My Mothers and Green Boy chapters
Viper V16: not high on my list, but Imagine was decent
Love Love Show: The best, and one of two Bishoujo puzzle games available in the States
Himeya (C’s Ware):
Amy’s Fantasies: Fun doesn’t begin to describe this game. Laugh out loud funny!
Desire: Very immersive murder mystery and conspiracy.
Divi-Dead: Creepy and difficult supernatural mystery
Gloria: The closest thing we have to a blend between Simulated Life Gaming and dating simulation. Very likeable characters and tons of endings.
Kotobuki: Also a very entertaining Bishoujo puzzle game, one of two available in the states
Maid’s Story: Suffers from bad translation, but good attempt at Simulated Life Gaming
Peach Princess
Tokimeki Check-In!: The second Bishoujo game I’ve played since I started and still no.1 to me, awesome music and adorable characters
Snow Drop: Very sweet romantic fairy tale, I thought Minoru was a tad under developed but all the girls seem excellent with respect to character personalities
X-change: Funny story although seems to be mostly setup for H-scenes, still a favorite of mine just because it’s Crowd and it’s the same character designer from Tokimeki Check-In!
Water Closet: Unusual but very intriguing concept, a college lesson in Water Closets.
Critical Point: Very nice mystery, recreates the feeling of a space station.
JastUSA:
May Club: Lots to love about this, the characters are likeable and the stories are very believable, makes you feel very important to the girls that you feel emotionally engaged to.
Milky House:
Fairy Nights and Legend of Fairies: Visual novels with very cute characters, I wished I could play Mahjong in the game, a slight demerit but not glaring.
Otaku:
Ring Out: ZYX’s only title translated to English, a visual novel with excellent voice acting although hard to believe story
True Love: Blend of RPG and dating simulation, excellent game.