Terms of Use
Effective Date: September 2025
Last Updated: September 2025
🧩 Quick Summary
Deduction Codex is a logic puzzle game featuring code-breaking challenges. It's completely offline - no accounts, no data collection, just pure puzzle-solving fun.
1. Acceptance of Terms
By downloading, installing, or using Deduction Codex mobile application (the "App"), you agree to be bound
by these Terms of Use ("Terms").
If you do not agree to these Terms, do not use the App.
These Terms constitute a legal agreement between you and CEREMY DIGITAL LTD ("Company," "we," "our," or
"us"),
a company registered in the United Kingdom.
Company Details:
CEREMY DIGITAL LTD
71-75 Shelton Street
London, WC2H 9JQ
United Kingdom
2. Description of Service
Deduction Codex is a digital logic puzzle game that provides:
- Logic Puzzle Gameplay: Deduction-based code-breaking challenges
- Code Breaking Challenges: Discover secret 3-digit codes using logical reasoning
- Oracle/Verifier System: Query mysterious oracles to gather clues about the secret code
- Interactive Tutorial: Learn the rules and strategies through guided examples
- Multiple Difficulty Levels: Progress from beginner to advanced puzzles
- Offline Gameplay: No internet connection required - play anywhere, anytime
- Progress Tracking: Local storage of your game progress and statistics
3. Game Rules and Mechanics
🎯 How Deduction Codex Works
- Your goal is to discover a secret 3-digit code (positions A, B, C)
- Each digit is between 1-5
- Oracle cards show multiple possible rules but each knows only ONE secret rule
- Query oracles with your guesses to receive ✓ (satisfies) or ✗ (violates) responses
- Use logical deduction to eliminate possibilities and find the code
4. User Responsibilities
You agree to:
- Use the App only for lawful purposes and personal entertainment
- Not attempt to reverse engineer, modify, or hack the App
- Not use the App to harass, abuse, or harm others
- Not distribute or share the App's content without permission
- Not use the App for commercial purposes without authorization
5. Game Content and Educational Use
Educational Purpose: Deduction Codex is designed to enhance logical reasoning and deductive thinking skills. It's suitable for educational use in mathematics and logic curricula.
The game provides:
- Logic puzzle mechanics that develop critical thinking
- Strategic planning and hypothesis testing
- Pattern recognition and elimination reasoning
- Mathematical logic and proof concepts
6. Offline Functionality
Deduction Codex is designed as an offline-first experience:
- No internet connection required for gameplay
- All game data stored locally on your device
- No user accounts or registration required
- No data transmission to external servers
- Complete privacy and data control
7. Age Appropriateness
Deduction Codex is suitable for:
- Ages 10 and up (with adult guidance for younger players)
- Educational settings and logic curriculum
- Family gameplay and learning
- Individual skill development
The game contains no inappropriate content and is designed as a family-friendly educational tool.
8. Service Availability
Since Deduction Codex operates offline, we provide:
- Consistent gameplay experience without server dependencies
- No service interruptions due to network issues
- Permanent access to purchased content
- Regular app updates through app stores when available
9. Updates and Modifications
We may:
- Update the App to add new puzzles, features, or improvements
- Fix bugs and enhance performance
- Add new game modes or difficulty levels
- Update these Terms - continued use constitutes acceptance of changes
Updates are distributed through app stores and do not require internet connectivity for gameplay.
10. Limitation of Liability
To the maximum extent permitted by law:
- The App is provided "as is" without warranties of any kind
- We are not liable for any damages arising from your use of the App
- Our total liability shall not exceed the amount you paid for the App
- The game is for entertainment and educational purposes
11. Privacy
Your privacy is important to us. Please review our Privacy Policy to understand our commitment to your privacy and data protection.
12. Termination
You may stop using the App at any time by deleting it from your device. Since the App operates offline and doesn't require accounts, there are no additional termination procedures.
13. Governing Law
These Terms are governed by the laws of England and Wales. Any disputes will be subject to the exclusive
jurisdiction of the courts of England and Wales.
14. Third-Party Services
The App is distributed through:
- Apple App Store: Subject to Apple's App Store Terms of Service
- Google Play Store: Subject to Google Play Terms of Service
The App itself does not integrate with additional third-party services for gameplay functionality.
15. Accessibility
We strive to make Deduction Codex accessible to users with diverse needs:
- Clear visual design with high contrast elements
- Intuitive touch controls optimized for mobile devices
- Text-based interface that works with screen readers
- No time pressure or rapid response requirements
16. Contact Information
📧 How to Contact Us
For questions about these Terms, the App, or general support:
- Email: support@ceremydigital.com
- Address: CEREMY DIGITAL LTD, 71-75 Shelton Street, London, WC2H 9JQ, United Kingdom
17. Entire Agreement
These Terms, along with our Privacy Policy, constitute the entire agreement between you and CEREMY DIGITAL
LTD regarding the use of Deduction Codex.