# Lost Signal: Story Sudoku — Repair the ship. Solve Sudoku

> Repair the ship. Solve Sudoku (iPhone/iPad app by Hakan Sabri Gulap.)

- Source: https://appshunter.io/ios/app/lost-signal-story-sudoku/id6758246529 (this page in markdown: same URL + `.md`)
- Developer: [Hakan Sabri Gulap](https://appshunter.io/developer/1868400126)
- Category: Games, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 46 MB
- Languages: American English
- Released: 2026-06-19
- Data updated: 2026-08-10
- User reviews in markdown: https://appshunter.io/ios/app/lost-signal-story-sudoku/id6758246529/reviews.md

## What is Lost Signal?

Lost Signal is not just a Sudoku game.
It is a story-driven sci-fi puzzle adventure.

You are the last engineer aboard a damaged spaceship drifting in deep space. 
Critical systems have failed. The only way to restore them is to solve logic circuits — in the form of Sudoku puzzles.

Each completed Sudoku repairs a ship system, unlocks the next chapter, and reveals more of the mystery behind the lost signal.

FEATURES:
• Story-based progression with sci-fi narrative
• 5 handcrafted chapters
• Full Sudoku engine with unique-solution puzzles
• Difficulty levels from Easy to Expert
• Modern premium sci-fi interface
• Haptic and sound feedback
• Hint system and error highlighting
• Offline play – no internet required
• Progress saving

HOW TO PLAY:
Select a chapter, read the mission briefing, then solve the Sudoku grid to repair the system. Complete chapters to unlock the next part of the story.

If you love logic puzzles, brain games, and sci-fi stories, Lost Signal is made for you.

Download now and restore the signal.


## Version history (last 1 release)

### 1.0 — 2026-06-19

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-10.*