For me, currently, it is the most mature adult game product on this site, even if still in development. Sadly, too many games here start as interesting ideas and then the devs get bogged down in bug hunting, improving artwork and adding more and more unimportant stuff that eventually breaks down their game's storyline into a collection of non-sequiturs, like more or less interactive porn clips. And they get abandonded halfway or are taken over by modders.
With 'Karryn's Prison', the storyline is simple, with well tried and tested H tropes and low to mid-brow humour that works just fine. I love how the devs implemented the in-game guide in various locations and conversations with characters, so a new player can learn the rules as they play, without having to search the webs looking for answers. The perverted H-logic is consistent most of the times, so there are very little surprises when playing (except for sadistic promotions for actively using sex techniques). They even smartly signposted locations and events that will be added in later updates without breaking the 4th wall too much.
I am pretty sure we will see the finished product within a year or so.
