Because this is an RPG Maker MZ game, Exorcism Goddess -v0.99a- By Ahyana runs on almost any PC. However, the v0.99a visual enhancements require:
Known minor bugs in this build: rare save corruption if you quit during a Spirit Clash QTE, and a text glitch in the "Village of Silent Screams" signpost. Ahyana has released an unofficial patch (.99a_fix) on their Discord.
At its core, Exorcism Goddess -v0.99a- By Ahyana is a tactical horror RPG. You play as Kanna Himura, a young miko (shrine maiden) who awakens to find her temple overrun by kegare (spiritual defilements)—physical manifestations of human anguish, sin, and unresolved trauma.
Unlike traditional exorcists who purify from a distance, Kanna can partially transform into a Goddess Vessel, allowing her to absorb corruption directly. The twist: every exorcism comes at a cost. The "v0.99a" iteration fine-tunes a unique Corruption Meter, where using divine powers slowly turns Kanna into the very demon she fights. Exorcism Goddess -v0.99a- By Ahyana
The narrative, written entirely by Ahyana, unfolds across five chapters:
Version 0.99a specifically adds a new "Epilogue: The Tainted Eclipse" that was not present in earlier versions like 0.9 or 0.95.
The holy city of Veladris once stood as a beacon of divine order. Now, its streets weep with corruption. A demonic strain known as the Withering Verse infects clergy, knights, and commoners alike—twisting prayers into hexes, turning cathedrals into hives of possession. Because this is an RPG Maker MZ game, Exorcism Goddess -v0
You are Sister Moraine, a low-ranking exorcist with a broken rosary and a dwindling faith. During a failed rite, you accidentally summon Ahyana—the forgotten goddess of exorcism, sealed away centuries ago for wielding a power too raw for heaven or hell.
Ahyana offers a forbidden pact: share your body with her, and she will burn the Withering Verse from Veladris by night. By day, you remain in control, hunting vessels, tracing curses, and hiding the goddess’s voice from the Inquisition.
But every exorcism fractures you further. Ahyana’s memories bleed into yours. Her enemies become your hunters. And the more corruption you purge, the more your own soul resembles a wound. Known minor bugs in this build: rare save
Earlier versions were standard turn-based. In v0.99a, Ahyana implemented a "Spirit Clash" system. When Kanna uses an exorcism art (like Ofuda Barrage or Purifying Flame), a circular QTE (quick time event) appears. Success means critical damage; failure causes backfire damage to Kanna. This keeps every random encounter tense.
For fans of: Saya no Uta (atmospheric horror), Corruption of Champions (stat-based morality), or Melty's Quest (RPG Maker titles with heavy gameplay focus).
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