Game 4/5
It's nothing "special' when it comes to gameplay, but it's very well balanced and meant to be pretty tough. Especially if you try a virgin run.
The game is very well polished, mechanics are easy to figure out, and yes it's a grind, but this is where the game shows some brains. You get different loot and more lore/story when you do runs multiple times. So even though it may feel grindy, you do get something out of it. The unique music has this odd feeling to it - the first boss is the one that'll make you go "WTF" but then it just... works.
The animation is smooth, maybe a bit hardware intensive. Protagonist is nicely designed as well, kinda like an anime mix between Ada and Claire.
The perk system when you level up is odd. you don't gain stats, you instead get perk points to buy passive or active skills and traits.
Like the AR? Get AR Mastery, unlock the special fire modes, and go to town - just watch your ammo.
It's a great mixture between survival horror, rogue like, and i guess the story is there. Definitely took some time with it.
It's a hard grindy game, and if you just want sexy times, use MTool and cheat. Makes it waaaay more enjoyable as a game.
The game does have an autosave, and you can save manually when at base, anytime i 'lost', i ended up back at the base so the game doesn't screw you over much.
Hentai 4/5
Only a 4/5 because the pregnancy mechanics are minimal and even MORE grindy than the rest of the game, but there's plenty of great animations for the enemies, most h-scenes are in combat, and the girl's design is delightfully hot but not absurd dimensions. (No pregbelly except when birthing tho)
The more she gets fucked, the more she ends up enjoying it but it's also not a 2 min process. You've really got to commit to it and actively let it happen, or bite off more than you can chew and end up a chew toy yourself.
When she gets 'fertilized' you get a special trait that gives you a + as well as a minus. For example, +1 AGL -50 HP.
The 'birth' scene is when you take a potion to recover your hymen (lol) and you 'eject' the seeds inside you. 2 or 3 variations IIRC.
Overall it's a fun game, definitely grindy, but worth a look.