SIGNAL: Merge Protocol
A merge mystery in deep space
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Founding engineers: the first 500 to reach the 3rd repair earn 5 Cores + 400 Flux. Rebuild the station before the offer's gone.
A distress call. A dead research station. One survivor who won't give up.
Deep in space, the station has gone dark — its crew missing, its systems failing. You answer the signal alongside Freya, and the only way to bring the station back to life is to MERGE.
Combine items on the grid to craft better ones, restore each module of the station, and power the mystery back online piece by piece. Every merge pushes the story forward.
— MERGE TO REVIVE —
• Drag and combine items to evolve them through satisfying chains
• Repair the station module by module: comms, command, engineering, life support, the power core and more
• Unlock deeper sections and discover new item chains as you go
— A STORY WORTH UNCOVERING —
• A voiced, cinematic sci-fi mystery told across multiple chapters
• Piece together what really happened to the crew of the station
• Every module you restore reveals another fragment of the truth
— BUILT TO RELAX —
• Solve at your own pace — no timers on the puzzles
• Moody, atmospheric sci-fi art and sound
• Play in short bursts or lose yourself for hours
— FREE TO PLAY —
• Enjoy the full story for free
• Optional in-app purchases to speed up your progress — never required to finish
Answer the signal. Restore Helix-7. Uncover the truth.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Fixed an issue where withdrawing an item from Cargo could make it disappear if a duplicate item was vanishing at the same moment
• Stability improvements
The developer, Yung Keet Lee, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yung Keet Lee
- Size
- 125.8 MB
- Category
- Puzzle
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Profanity or Crude Humor
Horror/Fear Themes
Contains
Advertising
- In-App Purchases
Yes
- Daily Deal: 78 Cores $4.99
- Daily Deal: 22 Cores + Refill $1.99
- Daily Deal: 15 Cores $0.99
- 150 Cores $8.99
- Starter Pack: 20 Cores $0.99
- 60 Cores $4.99
- 10 Cores $0.99
- Copyright
- © 2026 Melvin Lee