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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!
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Lloyd grew up never knowing his real parents, living with his sister Trina in the border town of Aslint. He hunts and works as an artificer, while Trina has just begun training as a priestess. Their quiet life shatters when Trina falls mysteriously ill. Lloyd soon learns that Trina carries demon blood, triggered by the presence of a sealed Demon Lord nearby. To save his sister from a worsening fate, Lloyd must find a way to defeat the Demon Lord—before she transforms into someone unrecognisable.
Travel the richly detailed world, full of diverse characters, each with their own stories and quests to discover. Craft items and upgrade your gear to grow stronger. Converse with the townsfolk to gather any information that could help Trina, whose condition worsens as the demon blood within her awakens. Venture beyond the town’s borders and gather rare ingredients, explore dungeons, battle monsters, and level up. But after a long day’s adventure, don’t forget to return and tend to Trina's growing thirst for mana.
Lowest tracked price: CA$21.07 (Jul 7, 2026) · current best: CA$24.79.
75% positive reviews in the last 30 days (73% all-time) · 30 peak players in the last 30 days.
Right now the cheapest offer for Fallen Priestess: My Sister's Demonic Bloodline is CA$24.79 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Fallen Priestess: My Sister's Demonic Bloodline is CA$21.07 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Fallen Priestess: My Sister's Demonic Bloodline peaked at 30 concurrent players on Steam in the last 30 days (highest on Jul 13, 2026). The player chart on this page updates daily.
Create a free price alert on this page and KingsPrice will email you when Fallen Priestess: My Sister's Demonic Bloodline drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
Audio & text: Japanese
Text only: Simplified Chinese, English, Korean, Traditional Chinese
