Mystery of the Abyss - A Decis Game icon

Mystery of the Abyss - A Decis 1.8

28 MB / 0+ Downloads / Rating 5.0 - 1 reviews


See previous versions

Mystery of the Abyss - A Decis, developed and published by Gecko Design Group, has released its latest version, 1.8, on 2023-03-19. This app falls under the Action category on the Google Play Store and has achieved over 10 installs. It currently holds an overall rating of 5.0, based on 1 reviews.

Mystery of the Abyss - A Decis APK available on this page is compatible with all Android devices that meet the required specifications (Android 2.3+). It can also be installed on PC and Mac using an Android emulator such as Bluestacks, LDPlayer, and others.

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Game Screenshot

Game Screenshot

Game Details

Package name: com.GeckoDesignGroup.MysteryoftheAbyss

Updated: 2 years ago

Developer Name: Gecko Design Group

Category: Action

Installation Instructions

This article outlines two straightforward methods for installing Mystery of the Abyss - A Decis on PC Windows and Mac.

Using BlueStacks

  1. Download the APK/XAPK file from this page.
  2. Install BlueStacks by visiting http://bluestacks.com.
  3. Open the APK/XAPK file by double-clicking it. This action will launch BlueStacks and begin the application's installation. If the APK file does not automatically open with BlueStacks, right-click on it and select 'Open with...', then navigate to BlueStacks. Alternatively, you can drag-and-drop the APK file onto the BlueStacks home screen.
  4. Wait a few seconds for the installation to complete. Once done, the installed app will appear on the BlueStacks home screen. Click its icon to start using the application.

Using LDPlayer

  1. Download and install LDPlayer from https://www.ldplayer.net.
  2. Drag the APK/XAPK file directly into LDPlayer.

If you have any questions, please don't hesitate to contact us.

Previous Versions

Mystery of the Abyss - A Decis 1.8
2023-03-19 / 28 MB / Android 2.3+

About this app

Mystery of the Abyss is an interactive story-driven stealth action game. In this science fiction adventure of deep sea exploration, the decisions you make will determine the outcome of the story.

"8,400 Meters below the surface of the Atlantic Ocean, a mysterious signal has been detected. Contact has been lost with the automated drone sent to investigate, and now it's your job to guide explorer Alex Monroe through extreme environments and challenging obstacles to uncover the Mystery of the Abyss."

The game features:
- An interactive storyline where your decisions affect the outcome
- A variety of mysterious environments
- Challenging obstacles requiring stealth and planning to overcome
- Hours of gameplay
- Over 30 levels and 6 different endings
- Play offline – no internet connection required
- No ads or in-game purchases

‘Decisions Adventures’ are a planned series of interactive science fiction stories created for an audience between the ages of 10-14 years of age, written to a fifth or sixth grade reading level. All our adventures are crafted to promote logical thinking, planning, and patience. They do not include player-participatory violence or supernatural elements. We hope you will enjoy ‘Mystery of the Abyss’, as well as our future installment ‘The Catacombs of Chaos’.

Download now to start your interactive adventure, and discover the 'Mystery of the Abyss'!