I have played RJ01397367. It was meh.
The gameplay is close to the bottom limit of what you could call a game. Very basic adventure type game where you examine everything the game lets you examine, and then you get to the end. There aren't even any puzzles unless you count a password being split into two different places a puzzle. There's a time limit the progresses when you examine certain objects but you have enough time to examine everything once so as long as you don't waste it checking the same thing over and over it's pretty lenient. I'm not a fan of stories like this where there are only all bad ends. Even when she successfully escapes she's not happy.
The h was pretty good. There's a couple of smaller events from examining certain objects, and you have a couple costume variations that are reflected in these events. But most of the h comes from failing the hiding sections and from the endings, which all have a fixed costume (mostly naked). Most of the scenes are monster rape with various tentacle monstrosities but there's also 2 ningen scenes. There's mostly a rape focus but some of the endings are mind break as well.
Overall I give it 2/5. The gameplay doesn't really exist but I liked the h. Though as much as I shit on the gameplay I do still prefer something like this compared to just viewing CGs or scenes individually.