Is good to have some list with NTR games since some of them are lost in time.
I must say the rating is useless for me. I'm not judging it is a matter of personal tastes. I don't like graphics 2d like comics drawing, animes, cartoon, kinder draw or when seems like painted with crayons. Many of them chinese or some other neighbor country (i repeat not judging).
But about asian games, since names are so different and some countrys put surname before the name, some call friend by surname, I can't say if a name refer a male or female, may not use the full name for a shorter version, those basics graphics don't follow the dialogue making difficult to know who is speaking, can add 'san' or many others like ' Story san'. ¿¿??!!! and finally 95% don't allow to change the characters name. In the middle of this i have not a fucking idea who is talking how respond and what am I doing playing this?
Back, to the rating thing, I only use RENPY engine, a few RPGM on isolated cases like The office wife, My girlfriend amnesia or Saturday night, i don't remember enjoying any Unity or other engine and HTML don't even deserve a try.
I brought this because I'w like to know if you guys can use the rating or not. I most people find it useless it would be good to make a list with a different order like engine or any other.