Undercity of Sin

Undercity of Sin

Manten Kobo · December 6, 2025 · Adventure, RPG, 2D, Cute, Singleplayer

Buy Undercity of Sin from Steam at $12.99 — the cheapest of 1 store we compare.

PC
Mostly Positive80% · 1141playing now
Best price
$12.99
lowest tracked $10.39
Steam Buy at Steam

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Where to buy Undercity of Sin — official stores

Steam
Steam
Standard Edition · Steam
$12.99
Buy

Undercity of Sin price by region

Undercity of Sin costs $2.00 in Georgia (USD), £10.99 in the United Kingdom, €12.79 in Europe (EUR), $12.99 in the United States, CA$16.99 in Canada, A$18.95 in Australia, NZ$18.99 in New Zealand, R$41.99 in Brazil and zł59.99 in Poland right now.

Cheapest Undercity of Sin offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
Georgia (USD) $2.00 $2.00 — 1
United Kingdom £10.99 £10.99 — 1
Europe (EUR) €12.79 €12.79 — 1
United Statesyour region $12.99 $12.99 — 1
Canada CA$16.99 CA$16.99 — 1
Australia A$18.95 A$18.95 — 1
New Zealand NZ$18.99 NZ$18.99 — 1
Brazil R$41.99 R$41.99 — 1
Poland zł59.99 zł59.99 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Undercity of Sin

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. But after a run-in with a band of yakuza, she finds herself deep in debt to a crime family. With a net worth amounting to a few loose coins and some pocket lint, she's left with no choice but to work for the very men she's indebted to. But in the process, she learns about a secret underground world, a cyberpunk city hidden from sight. Now to pay off her debt, Asuna will have to use her incredible strength to help the Matsuba Clan seize control of the crime-ridden Undercity.Experience a story of crime and gang warfare as you fight your way through eight procedurally generated dungeons full of machine soldiers and superpowered weaponry, and explore a skill tree with numerous ways to power up your character as you overcome this traditional turn-based RPG. A Cyberpunk Yakuza-Themed Story Dive into a cyberpunk world and the city's dangerous underbelly! Get entangled with the yakuza and struggle to regain your freedom!Eight Special DungeonsExplore eight procedurally generated dungeons as you battle your way to freedom through traditional turn-based combat!Skill Tree Unlock passive and active skills through an expansive skill tree! Level up or use items to farm skill points and turn Asuna into an unbeatable hero!

Undercity of Sin — game info

Platforms
Windows
Steam Deck
Playable
Player modes
Single-player
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jan 14, 2026
Undercity of sin have some cool ideas some cool art and a fun premise but... it's not good in those categories. Okay so obviously this is an H game and it is a corruption theme game that you go around dungeons fighting the Yakuza while you pay off your debt. But spoilers The Debt doesn't mean anything you can clear the game without it. And the dungeons are randomly generated so sometimes the stairs can be right next to you other times they could be on the other side and sometimes they're just one room away from you. There's no cohesion or thought process put into the dungeons just slap things together and that's it. The age content itself is pretty decent most of it is reused for generic enemies which makes sense. But that's not the worst part the worst part is the corruption thing that ultimately really has nothing to do with the main game she doesn't exactly change her personality in the main game if you make her a slut. Like the person who made this game or the small team were thinking about all these cool ideas but didn't know how to put it together. The music is all right it definitely fits the vibe of the cyberpunk setting which by the way they use the assets to perfection it…
4 found this helpful
Recommended Dec 21, 2025
level and inventory system is pretty useless in this game. gameplay could be more interesting. dungeons are very bland. though the story is quite funny and im pretty sure the uncut patch didnt even work. was alright
2 found this helpful
Recommended Dec 17, 2025
A wonderful corruption game where being corrupted has no negative effect on the games story and adds to it. You like something, you do something sort of thing. Randomly generated dungeon game and you run around doing things and "doing" things.
2 found this helpful
Recommended Oct 8, 2026
[h1] I Found Joy, I Am A Simple Man [/h1] [h2] Pros [/h2] 1. Thick FMC (I am weak) 2. Lots of scenarios for H-Scenes. Even though assets are reused, I don't really blame them for it. 3. Story is cookie cutter but enjoyable for what it was. 4. No NTR, shota, lolicon or other fetishes. Oh how I long for more games to take the straight and narrow path. Praise the devs for appealing to my simple brain. [h2] Cons [/h2] 1. Virgin Run is meaningless. Virgin status has no game implications and the dialogue assumes the FMC is not a virgin towards the end. 2. Every side character is just a silhouette. Why? You can't tell me the budget was that tight. Of course, I know nothing about game development. 3. Male characters in H-Scenes do not always match the story character sprite or intended appearance. 4. Missing the DLC content that includes the mother. Where is the Append for the game Steam? [h2] Suggestions [/h2] 1. There is a grind, but it can mostly be avoided if you choose. Towards the end I started skipping hoards of enemies. 2. Play on max difficulty, it will make max leveling OR using the Magic Shop somewhat worthwhile late game. 3. I did not pay off a dime of the debt. I am not …
Recommended Mar 13, 2026
I’d give this game a 7 out of 10. It’s a fun experience overall — the gameplay is solid, the visuals (especially the “H” scenes) are fine, and the bunny pole dance club music absolutely slaps The soundtrack is great, and while the voice acting is just okay, it fits the vibe. It’s not the best game out there, but it’s definitely a fun one and worth checking out.
Recommended Jan 30, 2026
Great game, genuinely. I have played it through. I really like the combat and how it goes somewhat similar to Kunoichi Botan combat with the demons (only good part of it really in Botan). Very playable you will be able to figure it out just walk around. Like any good book or movie you always want more. Some things that would have been nice to have is more cooperative decision like Botan to 'allow' things or move them to other parts of the body. Also multiple combatants do not work in unison it's pretty much one at a time while some group things would have added much more interesting twist. Last level was a grind just really getting through it - which was kind of a shame - given how the other levels slowly escalated and that one was more of no one is interested in her by now. So that's my wish list as it stands it's a good game would very much like to see more by this developer. I will most likely play it again and again. Great to have in your library.

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