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👉 Try it (includes sample game ¹ 🎮)

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Entire app source code fits on a 3x5 card 🤯
No server or third-party library.

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• Run Runs the game which contains the cursor. To create your own game, simply create a new function at the top of the editor.
• Copy Begins or extends selection and puts it in the Paste buffer. Depending on what is to the right, selects: word, line, paragraph or pairs. Press Enter to exit this mode. Also, you can Cut text by pressing Copy and then Backspace.
• Find Finds the word under the cursor. Also, you can Rename variables by pressing Find, typing a new word, and then pressing Find repeatedly to replace or Enter to skip.
• Comment Toggles comments and puts the line in the Paste buffer.
• Complete Completes word.
• Arrows Moves cursor or extends selection.
• Save Saves game and editor to a timestamped file.
• Undo, Redo, Fullscreen and Zoom
• 👍 Hold alphanumeric keys as an alternative to Capslock. Hold function keys to repeat a command.
• 🐞 Runtime errors display a message and places the cursor at the error.
• 🚩 Syntax errors turn the cursor red while typing.

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Footnotes

1. To use the joystick in the sample game, hold with your thumb in a comfortable place like the lower right, and slide, don't lift. ↩