M-CODE
PEDREA Puzzle
Decode the alien transmission — a memory puzzle in 60 levels. Free, no ads.
- Downloads
- 126+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Aug 2
- 2026 · v2.0.2
Screenshots
About M-CODE
In 1977 NASA launched Voyager 1 on its never-ending journey.
But in 2067 Voyager 1 stopped responding, and NASA considered it lost.
Years later, NASA engineers found an unknown device, similar to Voyager 1's digital tape recorder. The device, built from Voyager 1 parts, was not made on Earth. It is a kind of puzzle, teleported to Earth by unknown extraterrestrials.
Now you have the chance to solve the puzzle — and to see what they want us to see.
HOW IT PLAYS
• The device's round screen shows a space image, scrambled by a hidden sequence of steps
• Guess, memorize and repeat the sequence — the controls surface from a pool of molten gold
• Three mistakes reset the attempt; accuracy and speed earn a perfect 1000
• Every perfect level reveals a piece of the big picture
• Reveal everything to decode the final transmission
FEATURES
• 60 levels across four control types: arrows, colors, letters and alien icons
• Completely free — no ads, no purchases
• A story with a real ending
• Rebuilt for modern Android
But in 2067 Voyager 1 stopped responding, and NASA considered it lost.
Years later, NASA engineers found an unknown device, similar to Voyager 1's digital tape recorder. The device, built from Voyager 1 parts, was not made on Earth. It is a kind of puzzle, teleported to Earth by unknown extraterrestrials.
Now you have the chance to solve the puzzle — and to see what they want us to see.
HOW IT PLAYS
• The device's round screen shows a space image, scrambled by a hidden sequence of steps
• Guess, memorize and repeat the sequence — the controls surface from a pool of molten gold
• Three mistakes reset the attempt; accuracy and speed earn a perfect 1000
• Every perfect level reveals a piece of the big picture
• Reveal everything to decode the final transmission
FEATURES
• 60 levels across four control types: arrows, colors, letters and alien icons
• Completely free — no ads, no purchases
• A story with a real ending
• Rebuilt for modern Android
What’s new
Version 2.0.2 · Updated August 2, 2026
- remove ads feature
Play today's Sudoku puzzle
A quick 6×6 Sudoku every day; levels grow to the classic 9×9. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.
User reviews
Interesting idea!
Alternatives to M-CODE
Looking for apps like M-CODE? Here are 6 similar Android apps on Google Play. All of them are free to download.
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| M-CODE | – | Free | 100+ | Aug 2, 2026 | |
| Ball Fever | – | Free | 100+ | Aug 6, 2026 | Compare |
| Sudoku Den | – | Free | 1+ | – | Compare |
| Wrench Puzzle: Nuts Jam | – | Free | 10,000+ | Aug 3, 2026 | Compare |
| WordRush: Word Puzzle Game | – | Free | 5+ | Aug 29, 2026 | Compare |
| TileX 2048 | – | Free | 5+ | Nov 6, 2026 | Compare |
| b52 | – | Free | 500+ | – | Compare |
Compare M-CODE with the top alternatives: ratings, updates, ASO score and keyword gaps →
Similar apps on Google Play
- Ball Fever
- Sudoku Den
- Wrench Puzzle: Nuts Jam
- WordRush: Word Puzzle Game
- TileX 2048
- b52
- Hivelock: Hex Puzzle
- HEXTRI : Triangle Puzzle
- Got a Brain?
- Ring Legend
- UTC - Urban Traffic Control
- WordGami - Word Puzzle
- SudoSpark: Daily Sudoku
- Super15!
- IQ Brain Games: Train & Puzzle
- Draw & Drop Puzzle
- Picky Pixels
- Arrow Escape Puzzle Game
- Arrow Challenge: Endless Mania
- Pawsition: Cat Logic Puzzle
- Karman: Word Game & Detective
- Arrow Go: Logic Puzzle Game
- Cube Canvas Puzzle
- Bell Circuit: Music Puzzle
- Snake Puzzle: Brain test