# About NUMO DUEL

Source: http://localhost:3000/about/

NUMO DUEL is a colorful, mobile-first arithmetic game for short sessions of mental calculation. The player reads a problem, selects an answer and sees quick feedback while racing a timer.

Players can choose independent practice, an AI opponent or a real-person online duel. Difficulty and round length are configurable, and verified rankings intentionally exclude local practice sessions.

## Design principles

- Readable arithmetic and answer buttons across phone, tablet and desktop layouts.
- Short games with approachable rules and clear results.
- Illustrated avatar customization and personal progress.
- Adjustable contrast, sound, vibration and reduced motion.
- A lightweight, separately built public website that does not require the game engine.

## Availability

NUMO DUEL can be played in a browser. Its source also supports native Capacitor builds, but store distribution and online service availability depend on the actual release and configuration.

[Play now](http://localhost:3000/play/index.html) · [Game guide](http://localhost:3000/how-to-play/) · [Privacy](http://localhost:3000/privacy/)