Dojinshi non a sfondo erotico

Original works
Haibane Renmei by Yoshitoshi ABe, later becoming an anime serires
Municipal Force Daitenzin by Rikdo Koshi
Megatokyo by Fred Gallagher and Rodney Caston
TIN The Incompetent Ninja by Bleedman and David Stanworth

Derivative works
PowerPuff Girls Doujinshi by Bleedman

Dojin anime

Original works
The works of Makoto Shinkai
She and Her Cat
Voices of a Distant Star
The Place Promised in Our Early Days

Derivative works
The opening animations for Daicon III and Daicon IV by Daicon Films (now Gainax)

Dojin soft

Original works
The Tōhō series, published by Team Shanghai Alice
Tsukihime, published by TYPE MOON

Derivative works
Eternal Fighter Zero series based on Kanon, published by Twilight Frontier
French-Bread games (includes games under their former name, Watanabe Seisaakujo)
Melty Blood series based on Tsukihime
Melty Blood
Melty Blood Re:Act
Melty Blood Re:Act Cadenza
The Queen of Heart series, (mixture of many animes, parody of King of fighter series)
Ragnarok Battle Offline
This list is incomplete; you can help by expanding it.

i doujinshi sono manga o anime a carattere amatoriale possono essere a sfondo erotico ( i più) o meno