For me a good game is composed by
- A good atmosphere more than a good story. Since it's a PORN games, so sex need to be the the most important content in the game, and it's not easy to justify / implement such amount of sex in a game with a viable story. But the atmosphere need to be here. What I'm saying is that i'm ready to accept a game without a fantastic and deep story if i'm already sucked in the game by the atmosphere around. Example of games with a great atmosphere : Depraved Awakening, Summertime Saga, Darktoz games.
- Well, exciting girls, i'm not too demanding about the engine used for the models. Can be Daz, Sex villa, hand drawn, etc. Still I have a preference about hand drawn art (summertime saga best ever dawg). Even if personnaly have a preference for curvy women, trying to implement multiple body types can only be a boon.
- Gameplay; RPGMaker is almost out of question. Even if can work not too bad for some games (Peasant's quest, Farmer's Dream, etc) I don't think it has enough depth in it to be awesome. Point & Click seems ok. You'll say to me, " you say that RPGM doesn't have any depth but you're okay with a simple point & click ". Yes because at least the grind is less tiring, and no " go here by foot to do something ". I wouldn't ask a developer to do a full 3d game like some dedicated devs, Breeders of the Nephylims, Viking's daughter, etc. Of course it's the ideal scenario, but I understand the amount of work it requires, so point & click works for me. (Look summertime saga(again), Milfy City). Still, there are others gameplay options, as for example a turn based rpg, with management element, like Sengoku Rance (I thoroughly enjoyed this game, my favourite ero game of all time easily.)
- Thing that I could include in the ' art ' section but a bit different. You can have good models but the poses during the scenes and all is something that have to be mastered separately. Exciting poses, good camera angles and such.
- Good english, I think it's a minimum (not like mine)
- A gallery/replay section