Depends on what you are looking for. In terms of realism I don't think I've played any that compare to this one(at least that I've tried), but there is That New Teacher which is also a more grounded game. As far as sci-fi ones are involved there are soooo many but if I were to say in terms of story in my personal opinion one of my favorites is Out of touch! One of the only AVN games that has genuinely made me shed a tear and its pretty emotionally rough. Ripples is a very good one as well as having one of my favorite story concepts(TT), and Eternum which most people would tell you is a level above most AVN games and frankly it really is just that impressive. To mention a few more that I truly enjoy would be New Horizon, The Nature of Magic, Oppai odyssey, Cross Realms, Realm Invader, Sicae and My bully is my lover. Something I wanna point out about Realm Invader and Sicae is that its a pretty lackluster start in my opinion so you may feel inclined to drop it but it gets a lot better as you progress and My bully is my lover is, while not as bad of the rip, also somewhat lackluster in the beginning. Another thing I'd like to mention about My Bully is my lover is how misleading the title really is. While its not a completely inaccurate title, after about halfway into the game you start to think that it should have been given a different name altogether. Also Sicae and My bully is my lover share the same author and world so I suggest playing Sicae first as it is chronologically before MBIML