Sync your Steam wishlist to find the lowest game prices instantly. No login required, just paste your Steam profile URL! ⚡ Try Wishlist Radar!
Sync your Steam wishlist to find the lowest game prices instantly. No login required! ⚡ Try Wishlist Radar! Close

Fallen Priestess: My Sister's Demonic Bloodline on Steam

Quick menu

Embark on a thrilling quest to defeat the Demon King and save Trina from the curse of her demon blood. Protect her from those who seek to corrupt and steal her from you. Conquer dungeons, battle dangerous foes, and master unique Synthesis skills in this intense adventure!

Fallen Priestess: My Sister's Demonic Bloodline is a 2d, fantasy and pixel graphics game developed by BBQ大好き and published by BBQ大好き and Saikey Studios.
Released on November 21st 2025 is available on Windows, Steam Deck and Steam Machine in 5 languages: Simplified Chinese, English, Japanese, Korean and Traditional Chinese.

It has received 625 reviews of which 450 were positive and 175 were negative resulting in a rating of 6.9 out of 10. 😐

The game is currently priced at 18.49€ on Steam.


The Steam community has classified Fallen Priestess: My Sister's Demonic Bloodline into these genres:


Here is the detailed breakdown of supported languages for Fallen Priestess: My Sister's Demonic Bloodline:

UI Subtitle Audio
English
Korean
Simplified Chinese
Traditional Chinese
Japanese

Media & Screenshots

Get an in-depth look at Fallen Priestess: My Sister's Demonic Bloodline through various videos and screenshots.

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • OS: Windows 10 or later
  • Processor: Intel Core™ i3-2100 or similar
  • Memory: 4 GB RAM
  • Graphics: GeForce™ GTX 640 series or similar
  • Storage: 2 GB available space

Steam Price & Best Deals

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

29 hours played
July 2026
I feel like people who leave negative reviews are a bit crazy. Look, I am not fan of NTR. These 22 hours I have are from doing pure route, and there is A LOT of stuff to do in pure route. And I am still just now reaching final boss. Farming (plants), dungeons, farming (materials) quests, making money, story, puzzles, searching for secret weapon rune recipes, alchemy, trying different builds, etc. There is so much stuff to bite into in this game. This is legitimately solid H-game. And trying to do pure route is while not too hard, but not easy either. And art, atmosphere, story of course, it's all so good. It is must play for sure, even if you don't like NTR, because there is actual stuff to do in pure route.
46 hours played
May 2026
game is fun, However some scene are difficult to unlock and community page seems to be not working so unable to ask for help
53 hours played
April 2026
To do so much tedious work just to goon... It's so worth it! There have been a lot of bugs during its release, but the bugs have been fixed since then, and a new free update has recently been added. The game is great, and the h-scenes are delicious, so do get the patch!
77 hours played
April 2026
I would give it a 9/10 only because the release was buggy (Still some issues but nothing game breaking) and simply because I despise NTR. Game lured me in with its Title and allure of corrupting a chaste priestly maiden. Trina is both very beautifully drawn and portrayed with an initial innocence that at times made me not want to put her through the vile things you must put her though in order to get all the achievements and endings. The corruption system is great. Its a very slow burn and for some might even be tedious. And yes the men in this game are very grapy but step back a sec and look at what you downloaded. it literally kind of the point. There are technically two corruption routes: 1. Basic game route - two endings 2. Prince Route - two endings <----- this is painful if you dont wanna see Trina fall. as well a true love route that is bit harder to get than one would think, at least the achievements for it. The RPG elements are there and at first seem pretty intricate but you learn pretty fast you only need one or two weapons for Lloyd and pending if you go full blown corruption, Trina becomes a monster. Although the weapon system was cool. Each weapon has a specific skill set and you can equip gems and jewels to mess around with stats and add a skill or two. The battle mechanics def only matter the first play through for sure. Some would say alchemy is underplayed here, it isnt. its vital to see all elements of the story and plot. NOTE; The game shows you how to "Brew" a memory from alchemy. This is vital as Trina will drop items from her perspective. You brew these at the alchemy pot in the house. The artwork is gorgeous and her full VA is nice. The main reason i stuck around. All and all. This game was a buggy mess when it released but it has vastly improved and i look forward to future DLC.
11 hours played
Dec. 2025
First off, it’s very important to know that this is a heavy NTR-oriented game, not a wincest game. Don’t make the same mistake I did going in. If you don’t like NTR, please steer clear. But if you do like NTR, which I will never understand how your brain works, you’ll probably love this. There’s a wide cast of characters, from the fatty uncle to the ♥♥♥♥♥♥♥ hero and more. The art is absolutely gorgeous. I genuinely hope I can support the artist again in a future game that isn’t NTR. Also, bonus points for Black Souls easter egg. (the platform puzzles for black souls secret dungeon is ass btw please never do that again.)

Similar games

View all
Natsu no Sagashimono ~What We Found That Summer~ Summer vacation is finally here, and the next few weeks promise to be anything but uneventful! Natsu has just 30 days to acclimate to life in the countryside, help the locals face their demons, find that special someone, and gain the self-confidence to return home with his head held high!
Similarity 66%
Price 14.79€
Rating 8.3
Release 27 Sep 2024
Succubus Affection In a world of human-like monsters, a young man lives in a quiet, remote village with his sister. However, he is attacked by monsters when he leaves the village. Now he works hard to become stronger so he no longer burdens his sister.
Similarity 58%
Price 16.79€
Rating 8.6
Release 22 Oct 2020
Living With Sister: Monochrome Fantasy When your father goes off on an adventure, it's up to you to keep the lights on and take care of your sister.
Similarity 58%
Price 12.79€
Rating 8.9
Release 22 Mar 2024
Summer Memories It's summer break, and it's been years since you've last seen your aunt and cousins in the countryside! You don't know what to expect, but what could go wrong? Find out in Summer Memories!
Similarity 58%
Price 16.79€
Rating 9.0
Release 14 Jun 2020
Enishia and the Binding Brand Enishia is a simple nun and the sole manager of the last church in Megista. However, she must pay off a mountain of debt to prevent the demolition of the church and its attached orphanage. How can she make the money she needs?
Similarity 58%
Price 14.79€
Rating 8.1
Release 10 May 2024
your wife Your Wife is an anime desktop companion game. Choose a character whose gaze follows your cursor, adjust her position and size, and pair her with static or animated wallpapers. Subscribe to and share characters and wallpapers through Steam Workshop.
Similarity 56%
Price 0.99€
Rating 9.2
Release 28 Nov 2024
Lunar Mirror:The Pavilion of Desire This is a side-scrolling exploration and puzzle game with the background of the horror story of Cthulhu. You can move the character through A and D, talk to the character in the scene, press the F key to interact with the props in the scene, and complete the puzzle by collecting clues.
Similarity 56%
Price 8.19€
Rating 7.7
Release 04 Mar 2023
SiNiSistar 2 Step into a beautifully somber pixel art world of decay filled with grotesque, writhing abominations...A dark action RPG that follows the journey of a demon-slaying nun who must resist destruction and despair while purging the corruption from this world one boss after another!
Similarity 56%
Price 15.49€
Rating 8.7
Release 15 May 2026
LAST EMBRYO -EITHER OF BRAVE TO STORY- The young girl "Sill", who longed to become an adventurer, came to the Developing City Aletia. However, shadows came quietly... No one had expected what kind of crisis Sill would encounter. But every footprint left by her will soon become mythology...
Similarity 56%
Price 10.79€
Rating 8.6
Release 27 Nov 2020
Yarimono The protagonist's life takes a turn after their partner Yarimon learns the ultra-invincible move, the "Cheat Tackle". While challenging various trainers to participate in the Yarimon tournament, the protagonist unexpectedly discovers the secrets of this world.
Similarity 55%
Price 24.50€
Rating 8.3
Release 30 Aug 2024
LoveKami -Useless Goddess- After finding a collapsed goddess on the street, Sho takes her home. Akane is an Aragami, a goddess that only thinks about herself and causes trouble to those around her. Can Sho, with the help of Inori and Maika, help Akane reform into a perfect goddess?
Similarity 53%
Price 12.99€
Rating 7.5
Release 29 May 2017
FALL IN LABYRINTH Accidentally, you obtained a legendary sword and traveled to the "Labyrinth City of Veria-pool". What awaits you, is not only the wonderful dungeon "Labyrinthos", which can obtain unlimited treasure, but also the encounters with beautiful and mysterious heroines.
Similarity 52%
Price 16.79€
Rating 9.0
Release 16 Apr 2021

Frequently Asked Questions

Fallen Priestess: My Sister's Demonic Bloodline is currently priced at 18.49€ on Steam.

No, Fallen Priestess: My Sister's Demonic Bloodline is currently not on sale. You can purchase it for 18.49€ on Steam.

Yes, Fallen Priestess: My Sister's Demonic Bloodline received 450 positive votes out of a total of 625 achieving a rating of 6.88.
😐

Fallen Priestess: My Sister's Demonic Bloodline was developed by BBQ大好き and published by BBQ大好き and Saikey Studios.

Yes, Fallen Priestess: My Sister's Demonic Bloodline is playable and fully supported on Windows.

No, Fallen Priestess: My Sister's Demonic Bloodline is not playable on MacOS.

No, Fallen Priestess: My Sister's Demonic Bloodline is not playable on Linux.

Yes, Fallen Priestess: My Sister's Demonic Bloodline is playable on Steam Deck, though it might require a few minor tweaks. Make sure to check the Steam store page and community feedback on ProtonDB for exact compatibility details.

Yes, Fallen Priestess: My Sister's Demonic Bloodline is playable on Steam Machine, though it might require a few minor tweaks. Make sure to check the Steam store page and community feedback on ProtonDB for exact compatibility details.

No, Fallen Priestess: My Sister's Demonic Bloodline does not support VR.

Fallen Priestess: My Sister's Demonic Bloodline is a single-player game.

No, Fallen Priestess: My Sister's Demonic Bloodline does not currently offer any DLC.

No, Fallen Priestess: My Sister's Demonic Bloodline does not support mods via Steam Workshop.

No, Fallen Priestess: My Sister's Demonic Bloodline does not support Steam Remote Play.

Yes, Fallen Priestess: My Sister's Demonic Bloodline is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for Fallen Priestess: My Sister's Demonic Bloodline.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 29 September 2026 04:25 UTC
SteamSpy data 24 October 2026 13:45 UTC
Steam price 26 October 2026 20:21 UTC
Steam reviews 18 October 2026 21:59 UTC

If you'd like to dive deeper into the details about Fallen Priestess: My Sister's Demonic Bloodline, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about Fallen Priestess: My Sister's Demonic Bloodline
  • SteamCharts - Analysis of Fallen Priestess: My Sister's Demonic Bloodline concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck Fallen Priestess: My Sister's Demonic Bloodline compatibility
Fallen Priestess: My Sister's Demonic Bloodline
Rating
6.9
450
175
Game modes
Features
Online players
1
Developer
BBQ大好き
Publisher
BBQ大好き, Saikey Studios
Release 21 Nov 2025
Platforms