Games
Sharpen your ham radio skills with these interactive games — or just have fun with some classic puzzles. High scores are saved locally in your browser.
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Morse Trainer
Decode CW characters as they play. Adjust speed from 5–40 WPM and build your copy skills.
Alfa
Phonetic Quiz
Spell out randomly generated callsigns using the NATO phonetic alphabet.
9×9
Frequency Sudoku
Classic 9×9 Sudoku with HF band names instead of digits. Three difficulty levels.
QTH
Q-Code Match
Flip cards and match Q-codes to their meanings in this memory game.
Ω
Resistor Color Code
Read resistor color bands or pick colors for a given value. Two quiz modes.
15
Sliding Puzzle
Slide 15 tiles into order. Toggle ham-radio-themed labels for extra fun.
💣
Minesweeper
The classic grid-sweeping game. Three difficulty levels from Beginner to Expert.