pizzacatdelights.neocities.org
Your to-play list is already quite long, but maybe you'd also be interested in Planetarian: The Reverie of a Little Planet. It's only about 2 hours long and really manages to feel melancholic + tug heartstrings in that short time, I found that pretty impressive.
And I only mention this because you mention having liked Katawa Shoujo, another 4chan-produced romantic free-to-play VN: Snoot Game. It's good enough for me to recommend, but with the heavy disclaimer that early on in the game's story, the game's chan origins are pretty visible.
yesss and then when you get stuck rewriting pages forever…