# NUMO DUEL — free multiplayer math game

Source: http://localhost:3000/

NUMO DUEL brings fast arithmetic challenges to the browser. It combines short solo practice, AI opponents and optional online competition in one colorful, mobile-first experience.

## Highlights

- Timed rounds of 30, 60 or 90 seconds.
- Easy, Medium and Hard difficulty levels.
- Addition, subtraction, multiplication, division and mixed arithmetic.
- Four answer choices, immediate feedback, hearts and scoring.
- Play against AI, practice solo or challenge real players when connected.
- Local history, personal bests, illustrated avatars and achievements.
- Optional verified online leaderboard for completed human-versus-human matches.
- Knockout Cups: eight players, 30-second duels and knockout rounds until one player is left; computer opponents fill open seats.

## How it works

Open the game, choose a mode and difficulty, solve arithmetic problems before the timer expires, then review your result. Accuracy matters alongside speed. Friends can create a private room and share a room code when multiplayer is available.

## Learn more

- [Open the game](http://localhost:3000/play/index.html)
- [How to play](http://localhost:3000/how-to-play/)
- [Math games](http://localhost:3000/math-games/)
- [About NUMO DUEL](http://localhost:3000/about/)
- [Full overview](http://localhost:3000/md/numo-duel.md)

The website and game are separate applications. A functioning online service is required for connected multiplayer and authenticated leaderboards. There is no real-money wagering.