Seconds Game

• 

  App interface

Inspiration

Fast party games are fun because they create instant pressure, laughter, and “one more round” energy. I wanted to bring that feeling into Reddit as a daily ritual: same challenge for everyone, same order, and a live leaderboard.

What It Does

Seconds Game is a daily 10-second prompt sprint.

• Every day has 50 prompts.
• Every player gets the same daily prompt sequence.
• For each prompt, players must name 3 valid items in 10 seconds.
• Correct answer => next prompt.
• First miss or timeout => run ends.
• Ranked mode is once per day per user.
• Practice mode is unlimited and does not affect leaderboard.

The game also shows “Today inspired by” subreddits, so daily prompt packs feel fresh and connected to Reddit’s daily pulse.

How I Built It

• Devvit Web app with custom Reddit post UI
• TypeScript + Vite frontend
• Express server on Devvit
• Redis for run state, daily gating, leaderboard, and caching
• OpenAI Responses API for:
  • daily prompt generation from Reddit trend signals
  • semantic answer judging for open-ended inputs

Challenges

• Balancing strict vs fun judging for open-ended answers
• Keeping latency low between submit and next prompt
• Making a timed UI work smoothly on mobile (small viewport + keyboard)
• Preserving fairness (same daily prompts/order for everyone)

What I Learned

• AI judging needs game-specific guardrails, not just generic correctness
• UX details matter a lot in timed games (focus, scroll, compact layout)
• Caching/versioning strategy is critical for reliable daily content pipelines

What’s Next

• Better anti-abuse checks
• Richer post-run breakdowns and streak analytics
• Themed daily packs and moderator controls for prompt sources/difficulty

Built With

• api
• devvit
• express.js
• html
• openai
• redis
• responses
• typescript
• vite
• web