Undercity of Sin
by FullskyWorkshop/Manten Kobo
Versionv1.02 Steam
EngineRPGM
Released2024-07-26
Updated2026-04-09
LanguageEnglish, Japanese, Chinese (Simplified)
2D Game
2DCG
Ahegao
Anal Sex
Big Tits
Corruption
Creampie
Exhibitionism
Fantasy
Female Protagonist
Groping
Group Sex
Handjob
Japanese Game
Male Domination
Mind Control
Multiple Endings
Oral Sex
Pregnancy
Prostitution
Rape
RPG
Sandbox
Sci-Fi
Sex Toys
Spanking
Titfuck
Turn Based Combat
Urination
Vaginal Sex
Virgin
Voyeurism
Asuna Hoshizuki is beautiful, loudmouthed, and hits like a freight train. A jobless dropout, she doesn't have much of a life, but she has a loving mother and a family restaurant she helps out at. Trailer Spoiler Formerly known as "Asuna Hoshizuki and the Underground City of Lust".
Screenshots
i though that this game was released after Exorcist Evangeline -The Engraved Lewd Crest- (same devs) but no, it was made before (around a year). it's basically the same game. almost the same h-scenes, same way to gain lewdness and exhibitionism experience. not the same story (of course) but the execution is almost the same. the scenes are still well made but that's it honestly.
Just has everything my heart desires and what i'm in the mood for at that moment. if any of you have a recomandation for me, my favorite tag is corruption. also if it gets uncensored please contact me here (if you remember ofc)
The art is decent, but the story is dumb and the FMC is somehow even dumber. The game features battle fuck, and it's better implemented than in most other games. My biggest issue with this game is that its saturated with adult content, which should be a good thing, but it ends up feeling like a chore after a while. During the missions, you've got battle fuck and prostitution to the enemy, then you've got free time, where you'll run into more adult content, then you go back to do a mission, only to unlock even more adult content in the free time (because you've got the continuation of the previously unlocked scenes too). I suppose you could argue that it's all optional, but if you're going to play an adult game, it seems silly to skip adult content just because you're tried of it constantly being on your screen. To add insult to injury, a lot of the art gets recycle in the different scenes, which just makes the collection even more tedious. I think the game could've done much better if it had taken a page out of Karryn's Prison by making all of the adult content into a game, whether it's the combat or the mini games on the side.
Undercity of Sin v1.02 is an rpgmaker game made by FullskyWorkshop that tells the story of Asuna and how she begins working with the mobs of the Undercity, fighting her way out of debt while being harassed by random men on the streets. It is one of those games focused on balancing the purity versus the depravity of the heroine while advancing through the chapters of the plot. The game features a well-made map with plenty of interactions, skills, abilities, and decent combat. The anime artstyle is good enough and has its own personality, but it still feels simple and not quite elevated, despite the developers’ efforts to make Asuna very attractive. Most of the gameplay takes place in sci-fi dungeons, and although the combat includes many skills and can easily be broken by maximizing evasion and healing, it ultimately lacks something to keep it engaging. Over time, it becomes repetitive, as you perform the same moves while dealing with forced romances and uninspiring enemies as Asuna navigates the game with not much interesting content. Undercity of Sin is not a bad, but its overall quality never rises above average.
Starts as good game but fails to deliver good points. Combat is boring, cirruption is meh, plot is weird... I think the developer got bored of game and wated to wrap up it quickly. Also not a fan of those body proportions.
Theres actual lore in the game and its quite interesting to follow. I even grew attached to the character cast especially the protagonist. Sadly the story alone wont be enough to carry the game to a 10/10 The gameplay aspect feels like its half baked since you can dodge the entire combat section and just use the same old moves on bossess and theyd still go down. the Hentai aspect is very well done though even if the corruption mechanic is not the best its still there and its still Hot. Over all a pretty solid game that i wont be forgetting any time soon. Honestly i wanted more content and story but ehh, hopefully the circles next game delivers more if they make any more games
This feels like a game that was on its way to being good, but then was never finished. A lot of the systems in place feel half baked like the clothing system for example, which is essentially inconsequential. But I think the biggest disappointment was the corruption (or "depravity). It is extremely inconsistent, more so than a lot of other non-sensical H games like this. There appears to be no internal logic. Example, right off the bat in chapter 1, you're able to prostitute her, even though she is as prude as it gets at the beginning. Not to mention there is often no build up, and the scene just basically puts a dick in her mouth out of nowhere. It's like what's the point? The positives are just about as positive as any other H game. Which would normally put it at a 3, but it was just so illogical, I couldn't take it seriously.
It's a very standard game, with nothing really standing out for it. It was not badly developed, it is actually so average it's impressive. Probabl because of this... it can get boring really fast. As such I'll be giving a lower-than-average score.
Undercity of Sin H-Content: 3/5 Generally good, far too many reused assets to receive full points. Some art is dramatically better than the rest. Consistency and effort in this area is the most important element of an H-game and I feel like the dev missed the point here. Gameplay: 3/5 Standard fare. Writing: 3/5 it's acceptable and does what it needs to. All in all, this game is a decent fap for 10 minutes with a save file, not worth playing through due to recycled assets making up the middle half of the game.
A rating of 3.5 is about fair for this game. It is put together better than the average game here. But the game also came with notable flaws. The combat is OK. The story is OK. The corruption mechanic is weak. And I am not sure what loan repayment does. So long story short, the game is OK. but its also not very well polished. So its a bit shy of a 4 star rating. The game is basically what you see in the screen shots. You fight battles, level up, learn skills, beat the bosses. Yup... classic RPG.
To give credit where credit is due, this is actually the first game that the dev released (under the Fullsky Workshop name anyways) so all the copy pasting of game mechanics started here. Is it a good RPG game? It's pretty standard. Nothing too special and nothing too groundbreaking. It has battle fuck though so it's at least better than games that don't have them. Is it a good H-Game? Also meh in comparison to other good titles. It doesn't have a compelling story, and the corruption is pretty okay with some people seeing it as either a grind or something that happens too abrupt. One day she's pretty chill and literally the next day she's a slut. The one thing that this game has going for it is the art. Pretty good art and the devs know how to source them (as evident by their future works as well). The art they use for their games are actually sourced from well known (well if you're into R-18 art that is) artists so it's good that they're supporting them. Overall, I'd personally rate it as a 3.5/5 game but I'll bump it to 4 since it is technically the first game and it is the only game among their releases that has a DLC (hopefully Kagura eventually releases that too).
Nothing new but that isn't a bad thing. Most 3d copypaste slop on here gets like 3.5 stars easy so I don't see why this one is different. It has a bit of grinding sure, but it is to give progression to the corruption and scenes, real basic stuff. AND it doesn't even use ai art so like, less than 3 stars is crazy.
If you have played the previous game from Fullsky, this is the exact same game but with more anime looked FL A RPG with an okay combat, really top notch looking art (in most of the scenes) and a honestly way to annoying grind to get full corrupted which to be fair, is something to do it more relaxed instead of trying to max lust to unlock scenes as soon as possible Still, even when I should be annoying to all this, I cannot in good conscience give less than a average rating since by no means is poor. You can easily enjoyed with a save if you are impatience
Is it something new? No Is it good ? yes Its your typical corruption game with a really appealingly hot character and a good execution. Nice moans and sound effects, i wish this wasnt worth mentioning but when games dare launch withouth moan or bad sex sound effect then i thankful for those that do it properly. By the same token this game uses its soundtrack effectively to set the mood of the sexy scenes. While yes there is plenty of reclying, there is a satisfying amount of variet on the cgs. Finally i think that people overblow the lenght of the dungeons because while there are plenty of floors, the combat doesnt require you to grind and very often your will on a floor where the stairs for the next floor is right next to you. Overall a very enjoyable time.
Lack of translation to some parts of the items and dialogue (sorry Daedroth but I think it's still 90% translated). The CGs are very different from the boss defeats, dungeon defeats, interactions, and covers (to which I assume they've had various artists draw most of the art, which sped up the game's release). Repetitive CG from unique interactions and generic RPGM combat. However, there's something that carries the game which is the "Append", where there are 5 endings that add more outfits and interactions. Overall, 6 schlongs over a gangbang.
This game deserved a better rating there. Yeah there are no different routes and lack of different CG, but still it's better than 80% of games on F95Z. I love the art style and the way MC becomes lewder and lewder. Also pretty good voice acting and decent gameplay. Enjoyed my time playing it and hoping for new games with that artist
Pros: decent h-cgs Cons: TOO few h-cgs Honestly, I'm dissapointed in this game. It looks good but has lack of h-cgs. And there's no "preggo belly sex" as one of the characters says. Yes, you'll get few preggo belly costumes after clearing the game, but it has no affection on h-scenes at all.
played 1.0.1 append, quit after chapter 2 game is ridiculously braindead easy and generic. Sex content is stale, featuring run of the mill molestation encounters, battlefuck that you intentionally have to lose to see anything happen, auto-lose fights to see the sex scene (fortunately winning will unlock it in the gallery), and the cg collect-a-thon had no interesting storylines. "gameplay" is running through procedural generated dungeons that is lengthy and 0 effort. fighting amounts to attack/heal spam. All the characters suck. Even the va moans in an annoying way. If you want to see the scenes grab a full save game is not worth the time
I really wanted to like this game, I thought this game was "high quality"/ decently made based on the screenshots back then (when daedroth was still translating the game). So I waited for him to finish translating and anticipated playing this "quality" game. Days and months pass by and the dev released new games, the new games were great CG quality wise, but suffers from a lot of reuse (quantity wise), bad gameplay, barely passable plots, there just seems to be a lack of effort in their next games but I still kept hope that their first game is a quality one, and that their next games were just "flukes"/ rush jobs to make quick money. Finished the game and nope, this game is the same as the other games from this dev, same dungeon formula, same combat system, almost identical skill system with minor variations between each game. The circle is essentially put the bare minimum and make them quick to make quick money. What I'm trying to say is the dev of these games have no passion in their games, It's more of a formulaic "CG pack" game with some generic gameplay slop. Compared to future games from this dev, this is their first game and the games after this are mostly polished and has consistent artstyle. While this game SUFFERS from inconsistent artstyle (the art is drawn by 3-4+ different people) which makes the protagonist looked tanned in one artist and remains white in the others, other artstyle is great while the other seems like a poorly drawn woman. The game is essentially dungeon crawling in a procedurally generated dungeon to advance the plot and the H stats barely means anything in the plot/ ending. TIP: save yourself some time and just download full save and be disappointed at the EXTREMELY repetitive CGs with varying quality. This game is NOT WORTH PLAYING/ WASTING TIME on.
good art for some scenes but overall just bad art theres like 5 different pictures but a lot of scenes that are basically the same, gameplay is basic nothing special at all. overall a half baked game meant to interest you on cover art alone.
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