Salutations,
As others may have mentioned before, I would really like a visual novel based on the Touhou universe. I don't exactly have any other game to compare or cross it with, but I think a visual novel set in the Gensokyo world would be a captivating change of pace. I do believe it should have its somewhat silly atmosphere, as always, but a few serious moments would be much appreciated. On one side, a turn-based RPG could be interesting too, because the game mechanics would have to be changed up a little to fit that genre. As such, it would be very unique, at least in my opinion.
for me.
i personally thought about combining Touhou with SMT/Persona series.
Lotta character with it's own characteristics, expendable world, etc.
also Reimu can actually summon Gods which kinda similar.
Yukari got the similar role as Igor.
Social Links??
also i already set in mind who the main antagonist is.
what's left is the teammates though, i can use snae... but the others... eh???
i havent think much about it.
actually IF i can code, i probably makin it right now. but yeah.... i cant...
yet.
I've also considered that, but actually integrating those two aspects and mashing them together may prove to be quite challenging. For one, there's the dilemma between the school setting and the Gensokyo one -- both contradict each other, especially if you keep in mind that the Touhou characters do not really need to go (back?) to school, since the majority are around nearly as old as time itself. There's also the actual gameplay, and the difference between playtime -- SMT and Persona games are horribly lengthy, while the Touhou series has short installments in comparison.
Since you mentioned teammates, I think they should probably be the playable characters you can choose in the Touhou games, such as Sakuya Izayoi, Reimu Hakurei, Marisa Kirisame, Youmu Konpaku, etcetera. Unlike the SMT and Persona series, however, I'd like for all of them to be playable, but not like a switching perspective, as that could ruin the immersion -- just choosing a single character to experience the game as.
It's an interesting idea, but it really requires a lot of thought. Also, like you, I have always planned out games like these, but I never get down to it, nor do I have the knowledge to actually fulfill my concepts. It's important to understand that coding is not the only thing necessary to make a game like this -- the SMT and Persona installments have very large scopes. With all that being said, however, I wish you lots of good luck in this endeavor, and, of course, determination!
Honestly I'd love to see Lab Zer0 get their hands on touhou. If only just for a new fighter with the stylings of skullgirls (thematic crossover not withstanding), but even if they do something different I think I'd just low to watch the touhou gals running around in that hand drawn animation.
I really like the Skullgirls style and I'd be interested to see how the Touhou art direction would blend in with that.
A Danganronpa Style Touhou Game would be pretty cool. Not sure how it would work but Marisa would be main protagonist.
I imagine that the Daily Life section would contain the bullet hell stages, while Deadly Life would focus on investigating and interaction, although you could beat up a certain character to learn more information or to gain access to more clues, but that should be optional. Trial minigames would have bullet hell elements, and Psyche Taxi (I hope I remembered the name correctly -- it's been a while since I've really touched Danganronpa) would be the same, but instead of points or power, you pick up what you think is essential to solving a specific problem raised by the mystery.
[SPOILER ALERT -- TEXT HIDDEN FOR DARK MODE -- INDICATIVE OF SOMETHING THAT HAPPENS IN THE FIRST CHAPTER OF DANGANRONPA V3 -- HIGHLIGHT TO SEE]
Contrary to your suggestion, however, I think it'd be kind of meta but still somewhat neat if the protagonist was Sakuya Izayoi, but would be replaced by Youmu Konpaku, just like in the third installment. To me, Sakuya seems fairly serious, maybe even a little uptight, which is perfectly fitting for a protagonist of this game series. Marisa and Reimu would probably be secondary characters, while Yuyuko would be the detective sidekick who guides the protagonist.
Overall, I think that the crossover should lean towards the adrenaline triggered from catching a bad guy, instead of the tragic atmosphere that is present in the newer Danganronpa installments, because I don't really know if the Touhou universe would mesh too well with that. I think it'd be very fun to play.
Speaking of murder mystery games, I heard there's a fangame that is a crossover between Touhou and Ace Attorney. I haven't played it yet, but it sounds very interesting, so I encourage you all to give it a try if it seems like it may be right up your alley. (Edit) I think it's called Shin Gyakuten Touhou - Aya Shameimaru: Ace Attorney.