Abaddon: Princess of the Decay Free Download (v1.0.4)

About Abaddon: Princess of the Decay

Welcome to Ayakoji Mansion… Nestled deep in a dark forest and rumored to be full of sex, sin, and mystery, many have tried to discover the secrets within its walls… Professor Yamanobe, a close friend of the mansion’s owner, brings a small team of students to uncover the truth behind the mansion’s curses when they suddenly go missing. Enter Homura, son of Professor Yamanobe, who has recruited his small group of friends to scour the mansion with him in search of his father. Will they be able to find his father and escape alive? Or will they suffer an unthinkable fate…?Play in the style of a classic turn-based RPG complete with puzzles and horrors around every corner.Over 170 CGs with pixel art and full color variants are available for you to unlock! Manage your fear by confronting your phobias or using various items to calm down, lest you lose control and succumb to the horrors of the Ayakoji Mansion!Don’t lose all your hearts or go berserk more than three times! For you, it spells Game Over, for your party members it spells Permanent Death. You are free to romance any of the members of your party, more than one at a time…Interested in romancing another boy in your party? Simply go to the Options menu, accessible from the title screen and in-game to switch BL: On Don’t stop when you’ve only explored the mansion once! New Game+ unlocks new areas, special items, clues, routes, and endings.This Game may contain content not appropriate for all ages or may not be appropriate for viewing at work.


  • Click the Download button below and you will be redirected to UploadHaven.
  • Wait 5 seconds and click on the blue ‘download now’ button. We recommend using a download manager for faster download speeds. (You can use FDM which is free here, or any other download manager).
  • Once the game is finished downloading, right click the .zip file and click on “Extract to Abaddon: Princess of the Decay v1.0.4.zip” (To do this you will need 7-Zip, which you can get here, or you can use the built in windows extractor).
  • Double click inside the Abaddon: Princess of the Decay v1.0.4 folder and run the setup application. Accept the EULA, and install the game. Then, launch the game through the desktop shortcut.

Abaddon: Princess of the Decay Free Download (v1.0.4)

Abaddon: Princess of the Decay (v1.0.4)
Size: 333.17 MB


Reminder: This download is completely free and won't cost you a penny. However, If you love the game and want to purchase it, you can support the developers by doing so here.

System Requirements

  • Intel Core2 Duo
  • 256MB RAM
  • OpenGL 2.0 or DirectX 9.0c compatible
  • 1 GB