Games and entertainment decision
Trivia Duel
A single developer can build a usable 1v1 trivia site by combining existing open-source quiz projects and managed services; the vendor's production polish, scale, and curated content are the main reasons teams might keep paying.
Visit website↗Not priced
No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.
$100one-off80 h to build
$25/mo6 h/mo upkeep
No published price to break even against.
Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Trivia Duel alternatives, with the arithmetic →
What a replacement has to do
- Match two players (or player vs. CPU), serve a short sequence of multiple-choice questions from a category, accept answers, score rounds, and display results.
What it still won’t have
- Polished, heavily-played matchmaking and anti-cheat tuned by production traffic
- Large curated question catalog and content moderation
- Mobile-native apps and app-store distribution
- Any proprietary analytics, telemetry, or AB-tested UX optimizations
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
Trivia Duel does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
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What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal multiplayer trivia web app using Next.js (React) for the frontend, Postgres (Supabase) for the database and realtime, and Vercel for hosting. Core features in scope: category browse, question model (question text, choices, correct answer, category), admin CSV import for questions, 1v1 matchmaking with realtime sync (Supabase Realtime or websockets), answer submission and scoring, per-game result UI, and a simple user session (email or anonymous). Out of scope: mobile native apps, large-scale sharding, advanced anti-cheat, paid tiers, and analytics dashboards. Include error handling, edge-case tests for matchmaking and scoring, CI config, and deployment instructions.
How we checked
How the score was reached
- Build verdict base78
- An open-source build was found+5
- 3 cited sources+3
- Evidence score86
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 3
Every page the run actually retrieved.
- official productTrivia Duel - Play Online Trivia
- open sourceakashgiricse/lets-quiz
- open sourcecosmoart/quiz-game
Integrity checks
What held up, and what did not.
