An insanely good game. Without a doubt the new platinum standard for RPGmaker games, putting almost all of its competitors to shame. For anyone who played a lot of games made in the RPGmaker engine, this one is an absolute delight for how fresh and simply great it feels. The amount of polish this game received is incredible (it shows that polish goes such a long way for elevating an already good game to god-tier).
The game managed to overcome my most common critique I have for hentai games in general: Most of them can't combine sex and gameplay in any meaningful way, or at least in a way that makes both elements feel natural. "Karryn's Prison" manages to achieve just that. The gameplay is directly interwoven with its sexual content, every action you take has an effect on the sex scenes and said scenes (or their outcomes) can influence the gameplay in several possible ways (example: if Karryn ends up staring at too many cocks, she might not be able to resist a good look in combat too - or should you try to seduce your enemies to defeat them, that can backfire when Karryn develops sadistic tendencies or a particular fetish (of which the game has a lot).
There's so much that could be said here, from the creative minigames for the side activities, the varied combat and countless titles and kinks to explore, to the amazing artwork, the wonderful job done by the (English) VA voicing all lines as erotic as possible (even for the mentioned minigames), and the prison management itself, it all oozes raw passion. The devs have their heart in it, just like with their first game, offering a ton of content executed at the highest level possible for an RPGmaker game. This isn't just a sex game, it's simply a great game.
Just a couple important notes: The game is very addicting. Prepare to witness hours of your life vanishing inside the prison. Furthermore, it's not an easy game on your first run. Picking the easiest difficulty is a good idea for first-timers to get to know the game free of needless frustration (as the game openly tells you that its mechanics are designed to lead Karryn into depravity). Hence, the only thing that is easy is being too greedy, thinking "surely Karryn can continue serving a couple more drinks to unruly inmates to earn more money, what could possibly gone wrong..." -> next thing you know she ends up behind the counter, gushing cum from all her holes. That's super fun to see, but just like irl you risk losing it all once you go full degenerate (in this case: game over with a bankrupt, rioting prison void of all order).
It took me several attempts to get to the endings, as it does require knowledge of mechanics. If you go into this like I did, thinking it's a good idea to have all of Karryn's body be super sensitive... well, chances are you'll get fucked, a lot. Once you have a good grip of the game though, you can even tackle the challenge modes that unlock after a successful playthrough. I'll stop now though, gist being: 10/10 game, a new standard for RPGmaker games.