I’ll bite. Here is my Nitroplus top 10 list.
1. Hello, World
Nitroplus will very likely never surpass this, as they don’t make eroge like it any more, but it’s there, it’s an absolute classic and probably the best of the best when it comes to pure sci-fi eroge. EDIT: Hah, no, of course it’s not, sense off and himawari are better, but - okay, hello world is the best of the best when it comes to HARD sci-fi eroge.
2. Phantom: Phantom of Inferno / INTEGRATION
You guys already know why this rocks, since it’s available in English, but Phantom INTEGRATION is just… great stuff.
3. Satsuriku no Django: Tre Donne Crudelli
Narg’s already talking about this one, and it’s a wonderful game. Yee-haw.
4. Saya no Uta
Short but sweet, and leaves a long-lasting impression. Raises a lot of interesting moral questions, although admittedly not as many as Hello, World does.
5. Sumaga
High production values, great effects, fun characters and a totally whacked-out story so you’ve no idea whether to be laughing your head off or feeling horribly depressed. Good stuff.
6. Gekkou no Carnevale
Again, Narg’s already gone into this, but it’s a good story with great atmosphere.
7. Kikokugai
Phantom of Inferno meets Hello, World meets something else entirely for gritty cyberpunk action.
8. Zanma Taisei Demonbane
Mecha, cthulhu and dark magic. What more could you want?
9. CHAOS;HEAD
This game gets a bad rap, but really, apart from the admittedly rather weak end (felt like it sort of rushed to resolve things too quickly, and was quite unsatisfying. Not getting to change the ending much more after all the work required to get ending B was a shame too) it was gold throughout. Great storytelling.
10. Jingai Makyo
Okay, it was never quite as beloved as Nitroplus’ other titles, but let’s face it, Ignis is UNBEATABLE. The game is well worth playing even if you only play it for her. And you will play it. Because Ignis is in it. To me, at least, no other Nitroplus heroine is anywhere near as memorable.
All in all, I’d have to say that Nitroplus is one of the best eroge studios. If you asked me what other eroge studio had TEN titles that I enjoyed, I probably wouldn’t be able to answer =P GIGA might come close (Chocolat, Parfait, Kono Aozora, Fosette, Baldr Force, Baldr Sky DIVE1, Duel Savior Justice, Sakaagari Hurricane)
EDIT: WTF, how did I totally mix up the name with that of another game. Not thinking at all tonight.