1) Secret Game series by FLAT
This includes CODE: Revise and Killer Queen
What can I say? It was my inspiration and a fairly good read as well. It took the BR formula and brought it together in a way that we feel something for each of these characters. (Except Code: Revise, some of them need a bit of work.) Then there's the protagonists, Syuhei and Souichi, who have distinct personalities and actually feel more like characters than being PC's. (I won't say 'likeable' since Syuhei does some assholish things in C:R, and in the first version of Killer Queen, Souichi does as well) However, Code: Revise by itself wouldn't be on this list without Killer Queen, since
2) Utatemeguri by FLAT
Yes, another FLAT title. This one would be higher if not for the fact that I have a bias towards SG
At the beginning, Utatemeguri isn't very special, and it handles everything in it's story rather average. (However, the fight scenes are precise in their description, so no random power-ups) The transition between day and night events are rather mediocre as well. But then everything changes when you reach the final chapter. I won't go into details, since expectations will only lead to disappointment in this title.
3) Higanbana no Saku Yoru ni- Dai Ichi Ya by 07th Expansion
The visual novel version of a rather lackluster manga. Unlike the manga, the VN version is far more subtle with a few events, but just as brutal. Some of the stories in this sometimes hit a bit too close to home for me and a friend who read it along with me, and then there's the fact that Marie and Higanbana are both very likeable characters, each in their own way. While the human characters didn't stand out too much for me, I have to applaud the way Yukari chugged through her situation, and especially when she finally took the initiative in the end.
fortissimo EXA//Akkord: bsusvier by La'Cryma
The makers of Da Capo make a F/SN styled game. However, unlike Nasu's stuff, fortissimo takes more from shounen manga than it does from VN's. The battle scenes have ridiculous powering-up, and it seems that someone is always keeping a move hidden until the very last second. Despite this, it's still a pretty fun read.
Saya no Uta by Nitro+
Still mindrapey, still horrifying, and I still love it.