Steam app 1494810 · updated 12 Sep 2026, 21:26 UTC
Mortal Sin is a chaotic, blood-soaked roguelike where skill is power, and overconfidence is death. Carve through procedurally generated nightmares with brutal melee and flashy, satisfying combos.
575 hourly samples, with the daily peak drawn over them. Weekends are shaded.
43 months, March 2023 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 344 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 231 hourly samples. Each dip is a night. Weekends are shaded.
Mortal Sin was released on 29 Aug, 2025.
Frequent dismemberment of monsters, lots of blood. Morbid imagery such as dead bodies, bloody bones and other Dark Fantasy art.
| Language | Full audio |
|---|---|
| English | |
| Russian | |
| Simplified Chinese | |
| French | |
| Spanish - Spain | |
| German | |
| Japanese | |
| Korean | |
| Polish | |
| Portuguese - Brazil |
A blank audio cell means full audio was not marked in the returned language list.
47 achievements in total.
50 developer announcements, Oct 2023 to Jun 2026 · times in UTC
Hello Sinners!A lot of you asked to play Mortal Sin in your own language, so this update is a big step toward that. Five new languages, eight new unique items, and a stack of bug fixes. Here's everything:🌍 New LanguagesAdded German…
NikolaHi everyone!I wanted to share a quick update on what I’ve been working on, what’s next for Mortal Sin, and what’s coming later with my next game.For full transparency, since the last major update, I’ve spent most of my time working on my…
NikolaBlitz is here.This is something I’ve wanted to do for a while, a mode that strips Mortal Sin down to its core and pushes it as far as it can go. Faster runs, higher pressure, more meaningful decisions, and a real reason to compete.Every run…
NikolaHello Sinners!Those of you who are used to my usual feverish pace of updates might be wondering how things are going, so I want to be honest and transparent about the current state of Mortal Sin and what the future looks like.First of all…
Nikola🔥 Sinners! Friendly reminder that Santa is arriving earlier than expected, with a 20% sale through Steam's Winter Sale event. The offer will last till the 5th of January 2026 @ 10 AM PT. Let the snow fall, the blood flow and I hope that…
GabeHello Sinners! I have been cooking up some new content and features, but they need a bit more time in the oven. In the meantime, I wanted to ship these quality of life improvements to make the overall experience smoother and more…
NikolaHey, guys! The Steam Awards 2025 has just started, and it's definitely one of the best moments to allow the community to give Mortal Sin a chance to receive the support and votes for it. Mortal Sin is a blast for me to work on, and the fact…
GabeThis update is mainly about two things: making runs feel more worth chaining, and pushing performance further. The new Sin Remnants system lets you pick one of three on death or when continuing to the next run, and some of them can…
NikolaThe spoooooky season is already here, and the Trial of Halloween knocks for some mortal tricks or treats. This time, it chooses treats, with a 20% discount, no strings attached. From 📅 October 21 to November 3, there is never not a good…
GabeHey, Sinners! In case you have missed the information from the previous announcement, the official Steam Autumn Sale is here and not without a piece of Mortal Sin. With a 20% discount until 📅 October 6, 2025, this is one of the best times…
GabeFor this update I wanted to make the classes feel more distinct while also expanding the game’s meta progression. To do that, I’ve added a set of skill-based unlockable objectives that challenge you to play in specific ways. These…
NikolaHello Sinners, Thank you so much for the incredible support during launch. Mortal Sin has been trending on Steam and the response has been amazing to see. I’m truly grateful for all of you who picked up the game, shared it, and gave it a…
Patch notesIt’s finally here. After years of work, countless overhauls, and a lot of support from all of you, Mortal Sin is leaving Early Access and hitting full release.This update isn’t just a collection of tweaks, it is the culmination of…
Nikola⚔️ Arise, Sinners. The time is nigh. Mortal Sin, the chaotic and blood-soaked roguelike that pits you against waves of enemies in an unforgiving gothic novel-inspired world, has now received a confirmation for its official release date. I'm…
GabeHey everyone, while I’m working on some bigger content, I wanted to keep the momentum going with a gameplay-focused polish update. This patch is all about improving hit feedback, cleaning up visual effects, and fixing some long-standing…
Patch notesHey everyone, Before we dive into the full patch notes, I wanted to make a quick request: I’m looking for a Spanish (Spain) localizer, ideally someone who actively plays the game like our Russian and Chinese translators. If that sounds like…
NikolaIt’s time for another hefty update! This one brings major class revamps, new combos, UI upgrades, performance boosts, and some long-requested quality-of-life changes. Whether you're a seasoned brawler or just jumping in, there's plenty to…
NikolaREMINDER: Mortal Sin is 40% off right now — and this is your last chance for a deep discount! As I approach the full 1.0 launch, the price will soon increase and future discounts will reset to much lower levels. So if you’ve been on the…
NikolaThe Steam Summer Sale is here, and this is your last chance to get Mortal Sin at a heavy discount. The game is 40% off, but after this, the price is going up with 1.0 on the horizon, and major discounts like this won’t be coming back…
NikolaThis update introduces a set of brand-new quests, each built around the positional-style objectives I’ve found to be the most fun and intuitive. These quests use the special floor plate system as a base, with unique twists that encourage…
NikolaTook some time this update to sharpen the feel and addictiveness of the core gameplay. I thought things were in a good place—until I played Doom: The Dark Ages and realized my feedback was still a bit soft. Now? Hitting and killing things…
NikolaWelcome to all the new players! It’s been awesome seeing so many new sinners dive into Mortal Sin lately. I truly appreciate all the feedback — and I want to take a moment to address some of the common issues I’ve seen mentioned.…
NikolaThis update is a huge one behind the scenes—Mortal Sin now has full official support for Simplified Chinese and Russian! I worked closely with two dedicated players to bring these translations to life. Every line was reviewed manually, and…
NikolaWhile I love the classic art style of Mortal Sin, I’ve heard enough polarized feedback to ask myself: "Would offering a new way to see the game make a real difference?" At the end of the day, I care most about the gameplay—and if a new coat…
NikolaHere it is – the big content update! When I say Pirate Update, I’m not messing around. Whether you're tearing through enemies with dual pistols as the all-new Pirate class, or navigating the treacherous, ghost ship–inspired zone dodging…
NikolaHello! Wanted to share this nice quality of life update that spices up the game and opens some new build options to play with. Content Added a new skill: Chain Strike. Each successive hit in a single melee attack deals additional damage.…
Patch notesI've been reading all the comments closely, particulary those having to do with the durability rework that went along with this update. I was admittedly a little concerned about how these changes would go over, considering durability is…
Patch notesHello Sinners! In this update, I’ve done a complete overhaul of the skill system to encourage impactful decision making and greater build variety. Other highlights include the addition of sprinting, damage numbers, and more!…
NikolaHello Sinners! Back with an update that includes a lot of polish and also some commonly requested features that will help increase replayability. I really appreciate the feedback on the last combo update, and now I'm more in the mindset of…
NikolaHello Sinners! First of all, I want to thank you for the support in 2024, and I intend to carry this momentum into a strong 2025 release year. This started out as a minor update, but then I realized in order to do it right, it needed a lot…
NikolaHello Sinners! I've been working on polishing up the current gameplay before moving on to bigger content updates. Enjoy this batch of class changes, new color palette, bug fixes, and various other balance tweaks for a more enjoyable…
NikolaI've been reading all of your feedback carefully, and decided to make some adjustments I believe will help make for a smoother experience. I was a little worried about how the stun changes would be received initially, and I hear you loud…
Patch notesHere are a batch of balance hotfixes that should help smooth out the whole experience. I really appreciate all the feedback! Releasing a massive patch like this can be a little tough at the start, but I'm reading all of the comments I can…
Patch notesHello Sinners! After over three months of hard work and long hours, I'm happy to present to you an entire overhaul of the enemies and their AI! This was the last major system that was left over from the game's original conception, and it…
NikolaPushing this update mostly to fix the wall clipping issue people have been reporting. This was due to a bug in the new movement system I've been using, and it should happen way less often now. Thank you for your patience, and please let me…
Patch notesHello Sinners! I’d like to call this the ultimate polish and refinement update. After all the new content, I wanted to take a step back and evaluate the core game loop. I found there were quite a few tuning adjustments and reworks that…
NikolaHello Sinners! Without further ado, here is the single biggest update I’ve done since release. I was originally planning this for a sequel due to the amount of work involved, but I decided to do what felt right and replace the level…
NikolaHi all, I've been hard at work at a major update coming soon. I usually don't make posts like this, but the scale of this update is so big, and it's been a while since the last update so I figured it might be good to share a little of what…
Nikola-Greatly optimized the combo icon performance, which caused noticeable hitching before on steam deck and some lower end devices. It should now have equivalent performance to using combo text -Greatly optimized some other parts of the code…
Patch notesDoing a quick update turnaround this week! Wanted to try a new combo icon representation which is hopefully cleaner and faster to process in the heat of combat compared to the text. Next I plan to do the level rework update as I mentioned…
Patch notesHello Sinners, it’s time for another update! Sorry this one took so long, I’ve been working on a brand new level editor tool that allows me to generate a mix of randomly generated and premade rooms. Because I spent a lot of time on the tool…
NikolaHello Sinners, it’s time for another update! There’s been a lot of traffic lately which has been amazing. I am more inspired now than ever to keep improving the game, so thank you for the support! Here is the update…
NikolaHello Sinners, it’s time for another update! Have a long run going and don’t want to lose your progress just to try something new? I’m happy to say this is no longer an issue with the addition of save slots!…
NikolaHello Sinners! It’s time for a sizable update. Although there is no single major new feature, I was able to knock off a lot of items from my list which should help make for a more polished, varied and balanced experience overall. Enjoy!…
NikolaHello Sinners! If you are enjoying the game, I would appreciate your help in nominating me for this year's steam awards. It's been an incredible, life-changing experience creating Mortal Sin and getting to share this experience with the…
NikolaHello to all the new and old players alike! The past couple of months have been very exciting for the growth of the game, and I'm very grateful for the support! I wanted to introduce a commonly requested feature in this update: A combo…
NikolaI've been closely monitoring the feedback on the new enemy, and decided to make it an optional encounter for now rather than push something so experimental on everyone. It's likely I will re-use this enemy in the future for something else…
Patch notesIt’s the spooky season, and I would be remiss to not include some thematically appropriate content for Mortal Sin. Inspired by nemesis, I added a new pursuer enemy, the Immortal Construct.…
NikolaI wanted to push sort of an addendum to the art update, because I found some new techniques that I’m really excited to share! The grainy look of Mortal Sin has always been somewhat controversial. I considered it essential to the style not…
NikolaHello sinners! Since the last update, I am overall happy with the current state of the game’s combat, but I felt like it was time to revisit the second (or first depending how you look at it) most important aspect of the game: The Art.…
NikolaEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
| Name | Platforms | Released |
|---|---|---|
| Mortal Sin Soundtrack | WindowsmacOSLinux | 05 Jul 2023 |
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | Mortal Sin.exe | any |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocalLow | Doronik Games/Mortal Sin | *.sav |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG