Octal Brain Age

Creator · 2025

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Octal Brain Age is a retro-styled brain training game that teaches octal (base-8) number systems through quick, gamified exercises.

Why I Built It

I wanted to create something that combined nostalgia for Nintendo's Brain Age series with actually useful mental math practice. Octal is foundational in computing but rarely taught intuitively—so I made it fun.

Game Modes

Five mini-games targeting different skills:

  • Octal Flash — Convert decimal numbers to octal as fast as you can
  • Decimal Decoder — The reverse: octal to decimal conversion
  • Octal Arithmetic — Addition and subtraction entirely in base-8
  • Speed Recognition — Spot whether a number is valid octal (0-7 only)
  • Octal Memory — Sequential memory challenge with octal numbers

Features

  • Three difficulty levels with scaling number ranges
  • "Brain Age" scoring system (20-80) based on accuracy and speed
  • Daily training mode with streak tracking
  • Retro pixel-art aesthetic with sound effects
  • Full keyboard support for fast play