Jeopardy!

A Jeopardy! practice app built with Next.js, powered by thousands of real archive questions.

Features

• Solo play — pick a category and answer questions one at a time with immediate feedback
• Score tracking — sign in to track your correct/total ratio across sessions
• Multiplayer — compete with up to 10 players in real-time (no account required)
• Smart answer matching — handles misspellings, articles, Jeopardy phrasing, ordinals, Roman numerals, and partial answers

Multiplayer

Create a game and share the 6-character code (or QR code) with friends. Up to 10 players can join anonymously — no login needed.

Game settings (host configures before starting):

• 1–5 rounds
• 3–10 questions per round
• Final Jeopardy on/off
• Watch mode — host spectates instead of playing

Scoring — full value for answers within 10 seconds, decaying to 25% minimum by 30 seconds.

Flow:

1. Host creates game → players join via code
2. Each round: questions revealed one at a time, all players answer simultaneously
3. Per-question results shown after each answer phase
4. Leaderboard shown between rounds
5. Optional Final Jeopardy: 20s wager phase → 60s question phase → reveal

Players who disconnect miss those questions (scored as wrong) but can rejoin and continue.

Stack

• Framework: Next.js 16 (App Router, TypeScript)
• Styling: Tailwind CSS v4
• Database / Auth: Supabase (Postgres + Realtime Broadcast)
• Hosting: Vercel
• Questions: J! Archive via internal Supabase clues table

Getting Started

npm install
npm run dev

Copy .env.example to .env.local and fill in your Supabase project URL and anon key.

Environment Variables

NEXT_PUBLIC_SUPABASE_URL=
NEXT_PUBLIC_SUPABASE_ANON_KEY=