Meridian 157: Prologue is a point and click puzzle game focused on engaging puzzles, immersive visuals and an exciting storyline. It is the first part of the Meridian 157 series, where you play as detective David Zander investigating a mysterious weather anomaly in the northern Pacific Ocean. Use your wits to solve puzzles and overcome obstacles to find a way deeper into the island in order to uncover the mystery behind the 157th meridian!

Features:
• Elegant and eerie graphics with atmospheric sound effects and animations
• Lots of challenging and fun puzzles, perfect for all audiences
• Immersive ambient music tracks
• First part of an exciting storyline
• Completely free and no ads
• Available in both English and French

// Option A //

To download Meridian 157: Prologue mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Meridian 157: Prologue mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Meridian 157: Prologue from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Meridian 157: Prologue in HappyMod App.