An enjoyable game with a good amount of H-content. I can only hope that the devs add to this game in the future (probably not though).
There's not much of plot to be found: you wake up in a prison cell of some facility being operated by a group of cat-girls who are trying to restore humanity (or something to that effect, the lore dumps in the loading screen weren't super detailed and usually disappeared before I could finish reading them). Anyways, your objective is to travel the facility, gain the power-ups, rape the girls, and... that's it. There's two unlock areas at the end: a temple which randomly spawns two of the girls, and a waterfall area where 5/6 of the girls are bathing.
Gameplay wise, it's a mix of a rogue-lite, some platforming, and hack & slash elements. The basic enemies are easy enough to kill. You start off with three basic types of crystalline enemies: the blue ones who die very easily to the basic attack, the purple taller ones who take and deal a little more damage, and the giant light blue ones who can kill you in two hits and require you to be light on your feet when fighting them. Eventually, the game throws some ranged units at you, and a few scattered bosses. Of the six female characters, only two of them are characters you have to fight: ones sword-bearer and one auto-rifleman.
As mentioned earlier, there are six female characters to encounter. None of them have any voice lines aside from sexual moans, voices of surprise/embarrassment, and the occasional scream. That being said, each of them has a different voice than the other which compliments their designs.
In terms of sex scenes, there are 10 that are viewable in the game. Each H-scene has three sub-poses: usually a foreplay scene and two sex poses with penetration. All but two of the foreplay scenes are the player-character fingering or rubbing the female character, with the others being a blowjob and a female masturbation scene. Each of the scenes can be viewed on each of the female characters. However, one of these scenes can only be viewed in the final temple area (aroused sleep scene). Overall, the 3D scenes look pretty good, even with the mosaic removed.
In addition to the H-scenes, you also have the ability to freely walk up and touch the female characters on their breasts, buttocks, and genitalia.
I've noticed several people complaining about the performance. Fairly certain it's due to the inconsistency of Unreal Engine as my GTX1070 never dipped below 60fps in fullscreen. The only real performance issue I had was the occasional vertical screen tearing when looking at some of the structures in the first fortress area.
All-in-all, an excellent game. It's always nice to have an action game where you aren't the one getting raped.