Abyssal Signal
Decode Deep-Sea Pulses
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Descend into a Victorian deep-sea observatory where unknown creatures communicate through pulses.
Arrange Invert, Delay, Reverse, Filter, Echo, and Amplify modules to reshape each signal until the received waveform matches the target. Every adjustment brings the mystery into focus, but one wrong move can send the message deeper into the abyss.
Explore six chapters and 72 handcrafted logic levels. Find the optimal solution, earn three stars, restore the lost specimen archive, and uncover the creatures hidden in the depths.
A new daily signal is available to solve offline, whenever you want a quiet, focused puzzle session.
No account required. Play offline.
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Bug causing a crash due to rewarded ad loading failure
The developer, Onay Dere, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Onay Dere
- Size
- 55.1 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Contains
Advertising
- Copyright
- © 2026 XGame Inc.