Can you recommend some similar visual novels to 'rainflow visual novel'?
I'm not that familiar with 'rainflow visual novel' specifically, but some popular visual novels are 'Clannad'. It has a great story about friendship, family, and love. Another one is 'Steins; Gate' which is known for its time - travel plot. 'Danganronpa' is also quite well - known for its mystery and unique art style.
It's tough to recommend similar visual novels without knowing more about 'rainflow visual novel'. But if it has a strong focus on story - telling and character development, you could check out 'Fate/stay night'. It has a very in - depth story with multiple routes and interesting characters. 'Tsukihime' is also from the same creator and has a similar style of story - telling. Also, 'Katawa Shoujo' is a visual novel that has received a lot of attention for its unique characters and story, and it could be considered if 'rainflow visual novel' has elements of character - centric story - telling.
Since I don't know the exact nature of 'rainflow visual novel', it's a bit difficult to give very similar ones. However, if it's a more nature - themed visual novel, you might like 'Narcissu'. It deals with some deep themes related to life and nature. 'Umineko no Naku Koro ni' is also a great visual novel that has complex stories and characters, and it might be similar in terms of the depth of the narrative if 'rainflow visual novel' has a complex story. 'Planetarian: The Reverie of a Little Planet' is a beautiful visual novel that has a somewhat similar feel if 'rainflow visual novel' has an emotional and somewhat melancholic tone.