Description
Challenge your logic and deduction skills with CODEGYM, a modern take on the classic Mastermind code-breaking game. Featuring a sleek retro console aesthetic with neon LED styling, CODEGYM offers an engaging puzzle experience that tests your analytical thinking.
4 Game Modes
Choose from four difficulty levels to match your skill:
Easy: 4 pegs, 6 colors, 10 attempts (with position hints)
Normal: 4 pegs, 6 colors, 10 attempts
Expert: 5 pegs, 6 colors, 12 attempts
Wizard: 6 pegs, 6 colors, 15 attempts
Clear visual feedback showing correct colors and positions
Two-column display: "Correct (Color + Position)" and "Correct (Color Only)"
Easy mode highlights correct positions for learning
Timer Mode
Optional timer adds an extra level of pressure
Track your fastest completion times
Compete against yourself for speed records
Progress Tracking
High scores saved for each difficulty level
Game history showing your last 5 attempts
Separate tracking for timed and untimed games
Customization
Dynamic LED color themes that change on each session
Save your favorite color theme
Toggle between neon and classic mustard themes
Retro split-flap digital displays
Beautiful UI
Console-style game stats panel
Animated background effects
Smooth transitions and visual feedback
WCAG AAA compliant high-contrast color schemes
How to Play
Select your difficulty level
Click colors from the palette to place them in your guess
Tap any placed peg to clear it
Click "Check" when all pegs are filled
Use the feedback to refine your next guess
Crack the code in as few attempts as possible!
Game Stats
Track your performance with:
Best attempt count for each mode
Fastest completion times (when timer is enabled)
Game history with outcomes and times
Separate leaderboards for timed and untimed games
Visual Design
CODEGYM features a retro-futuristic aesthetic with:
Neon LED color schemes
Split-flap digital displays for scores and timers
Animated background bubbles
Console-style game stats panel
Smooth, modern UI with classic game charm
Perfect For
Logic puzzle enthusiasts
Brain training and mental workouts
Quick breaks and casual gaming
Competitive self-improvement
Anyone who loves classic code-breaking games
Privacy
CODEGYM runs entirely locally in your browser. No data is collected, transmitted, or stored externally. All game progress is saved locally on your device.
Ready to crack the code? Install CODEGYM and start your retro brain workout today!
Reviews
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Details
| Version | 1.1 |
| Updated | Dec 8, 2025 |
| Size | 23.43KiB |
| First Seen | Mar 27, 2026 |
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