SIGNAL: Merge Protocol

Contains adsIn-app purchases
Content rating
Everyone
10+
Downloads
Content rating
Everyone
Mild Fantasy Violence, Mild Language
In-Game Purchases
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About this game

A station that shouldn't still be transmitting. And one engineer left aboard to answer it.

You are Freya, comms and systems engineer on Helix-7 — the deep-space station whose communications array you spent years designing. The power is gone. The crew is gone. Something is still broadcasting.

SIGNAL is a story-driven merge puzzle game. Combine salvaged parts to rebuild Helix-7 system by system, and piece together what happened here from the logs the crew left behind.

⚡ FOUNDER'S REWARD — FIRST 500 PLAYERS
The first 500 engineers to bring Helix-7's third system back online receive a founder's bundle: 5 Cores and 400 Flux. Get aboard early.

MERGE TO REBUILD
Combine matching parts to forge better ones. Deep crafting chains turn scrap into reactor nodes, life support pods and more.

A STATION WITH A STORY
Six chapters of voiced narrative told through audio logs and transmissions. Every system you bring back online reveals another piece of the truth.

ATMOSPHERE FIRST
Deep navy, cold cyan, and a score built for the quiet between transmissions.

PLAY AT YOUR PACE
Single-player and story-first. Energy refills over time, so SIGNAL fits a few merges on a commute or a full chapter at night.

Helix-7 is still broadcasting.
The question is what it's been trying to say.
A merge mystery in deep space. Rebuild a dying station, uncover the truth.
Updated on
Aug 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Financial info and 2 others
  • This app may collect these data types
    Location, Financial info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

• 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