If you're talking about Bullet requiem I played some of it, it was alright but the game play was a little lackluster. I like NoR because its a fun game that plays decently as well, all the considerations are there if you just wanna play the game. I've been browsing the forums looking for stuff as well, I tried some games like Future Fragments and Asmodeus something or another. Those were similar to what I'm looking for but Asmodeus was garbage and Future Fragments, although high production value, the gameplay was boring. And the scenes were so small you could hardly see anything but the voice acting was good.
Perhaps my expectations are to high?
The only erotic games I've played besides these are like Akabur's and pyagoras stuff, which is entertaining but not strictly "fun", and Corruption of Champions, which you have to read and the fetish stuff gets a little wild for my tastes.