Circuito Cero
Offline cooperative deduction
Free
Every screen holds part of the mystery. Gather your team, choose which clues to share, and stabilize the network. For 2–6 nearby players, without internet.
Each screen holds part of the information. Cooperate to win and compete to contribute.
Circuito Cero is a cooperative deduction game for 2–6 people playing together in person, each with an iPhone or iPad. Your diagnostics team must uncover the hidden frequencies of a network of stations before the team runs out of integrity.
FOUR WAYS TO DECODE THE NETWORK
Frequencies: combine sums, differences, and odd/even clues.
Signal Patterns: discover a sequence and fill in its missing pulses.
Lost Operators: reconstruct values and the +, −, and × symbols.
The Contradictory Sensor: identify the single false reading and solve the frequencies.
A CLUE ON EVERY SCREEN
Receive private readings based on sums, differences, comparisons, and odd or even numbers. Combine the readings you share and discuss your theories. With two players, deduction can be more direct; both players still take turns.
SHARING IS A STRATEGIC CHOICE
Private readings can only be revealed through the Transmit action. Every shared clue uses one transmission, so choosing what to share matters as much as finding the answer.
THE TEAM FIRST, YOUR CONTRIBUTION COUNTS
On your turn, select an answer and confirm it to end your turn without spending a transmission. Earn 3 points for a correct answer and 1 for sharing a clue that adds information. When the team wins, the most powerful eligible shared clue earns 3 extra points. A mistake costs the team integrity and you one personal point. If the team loses, nobody wins. Tied players share the victory, and the final report recognizes how each person contributed.
There is no countdown: take time to think, but make your limited transmissions count. When they run out, you can still answer using the clues you have gathered. You can save a strong clue and share a weaker one; the whole team shares the risk.
BRING IT TO YOUR NEXT GATHERING OR TRIP
• 4 scenarios and 42 maps with variations between games.
• 3 difficulty levels.
• Solo guided practice with Lía, a simulated teammate.
• Illustrations with an ink-and-pencil look.
• Interface and clues in 21 languages.
• No accounts, ads, or in-app purchases.
PLAYING TOGETHER
Each player needs the app installed on an iPhone or iPad running iOS/iPadOS 26 or later. Keep the devices nearby, enable Wi-Fi and Bluetooth, and allow Bluetooth and local network access. Compare the connection code on both devices and accept only if it matches. One person creates a room; the others join from their own screens.
Games do not need an internet connection. Install the app before you leave: the content is included, and progress is saved on your device. Guided practice does not require a second device.
Gather the clues. Compare your theories. Restore the circuit.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Circuito Cero 1.8.0 adds forty narrative maps for your team to reason through together.
• Investigation: reconstruct what happened using each player's clues.
• Evacuation: coordinate preparations, departure order and shelter conditions.
• The Crossing: move people, animals and tools without leaving them in danger.
• Expedition: explore the ruins, use your equipment and choose the next step together.
Ten maps per scenario, three rule or relationship variants per map, and new hand-drawn-style illustrations. All 42 mathematical maps and 21 languages remain available.
Update every device before playing together: this version introduces a new game protocol.
The developer, RAFTELL S.A.S., 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- RAFTELL S.A.S.
- Size
- 143.8 MB
- Category
- Board
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later.
- iPhone
- Languages
English and 20 more
- English, Arabic, Bengali, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Persian, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Turkish, Urdu, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 RAFTELL S.A.S.
