La Previa

Inspiration

Party games like Among Us or Jackbox are fun, but they require downloads, purchases, or complex setups. I wanted a game you can start in seconds – just open a link, choose a nickname, and play. No installation, no accounts with passwords. Also, I wanted to prove that with MeDo, anyone can build a complete multiplayer game without writing a single line of code manually.

What it does

LaPrevia is a no-install multiplayer party game platform. In 10 seconds you create a room, share a 6‑letter code with friends, and start playing. It features 5 classic reinvented games:

• Simon Says – repeat the color sequence
• No Iguales – vote to eliminate options
• No Presiones – stop the countdown closest to zero
• Adivina el Número – guess the secret number with hints
• Hunde el Barco – classic Battleship on a 10×10 grid

Unlimited players, 6 languages, and the host picks the game. Perfect for online hangouts.

How we built it

I built LaPrevia entirely by talking to MeDo – no traditional coding. I described each game in natural language, step by step, and MeDo generated the working code (frontend, game logic, multiplayer rooms). I used:

• Multi‑turn chat to refine game mechanics (e.g., "add a 6‑character room code", "make it work for unlimited players")
• Visual editor for quick layout adjustments
• One‑click deployment to a public URL

I structured conversations to keep each game independent but sharing the same lobby system. MeDo handled the WebSocket logic for real‑time multiplayer.

Challenges we ran into

• Real‑time synchronization: Making sure all players see the same game state simultaneously was tricky. I solved it by describing the exact behavior to MeDo ("when host starts game, broadcast state to all players").
• Battleship turn system: Ensuring players can't cheat or fire out of turn required several chat iterations. MeDo eventually generated a clean turn‑based state machine.
• Room codes: Generating unique 6‑letter codes and handling expiration needed careful prompting, but MeDo understood after 2‑3 clarifications.

No major blockers – MeDo handled almost everything.

Accomplishments that we're proud of

• Fully functional multiplayer platform built in hours, not weeks
• 5 complete mini‑games with different mechanics (memory, voting, timing, deduction, strategy)
• Zero traditional code written – just conversations with MeDo
• 6 languages support without extra effort
• Unlimited players – no hardcoded limits

Proudest moment: The first time two friends joined a room from different devices and played No Iguales perfectly. It just worked.

What we learned

• MeDo can generate real‑time multiplayer logic as easily as static pages – you just need to describe the event flow clearly.
• Breaking a game into small, independent descriptions works better than one giant prompt ("first build the lobby, then Simon Says, then Battleship...").
• Natural language is enough to build a production‑ready party game – you don't need to know WebSockets, state machines, or room management beforehand.
• The most important skill is clear communication with AI, not programming.

What's next for La Previa

• More mini‑games – add user‑suggested games via MeDo (can generate a new game in minutes)
• Persistent user profiles – track stats and wins across sessions
• Mobile‑first polish – optimize touch controls for phones
• Public lobby browser – join random public games instead of private codes
• Launch on Discord – bot integration to play directly inside Discord servers
• Open source the prompt templates – show how anyone can clone and create their own party game with MeDo

Built With

• javascript
• react
• tawilwind
• vite