The Problem: The One-Phone Trap at House Parties
A few weekends ago at a gathering with friends, we wanted to play a classic round of Truth or Dare / Spin the Bottle.
If you've ever tried this at a party, you know the exact painful ritual:
- 8 to 12 people awkwardly squeezing shoulder-to-shoulder around a single cracked smartphone screen.
- Passing the phone around sticky drink tables (and someone inevitably almost dropping it into a beer).
- Outdated mobile apps charging absurd $9.99/week subscriptions just to unlock basic prompts.
It completely stalled the energy in the room. That night, I decided to build a proper modern solution: Wobbly Bottle.
The Concept: Jackbox-Style Room Codes on Mobile
Instead of passing one device around, why not let everyone play on their own smartphone while staying completely synchronized?
Here is how the architecture works:
- The Host Room: One player creates a room and gets a private 6-digit room PIN and QR code.
- Instant Joining: All other players open the app on iOS or Android and enter the PIN. No accounts or passwords required.
- Synchronized Bottle Physics: When the host spins the bottle, the custom physics engine tilts, bends, and spins the bottle simultaneously across every connected device in real time!
- Questioner & Answerer Selection: When the bottle stops, neon lasers point at both the questioner and the answerer across everyone's screen.
3 Flexible Game Modes
We designed three distinct modes to fit any social setting:
1. 📱 Table Mode (Classic Pass-and-Play)
For quick, casual hangouts: place one phone in the center of the table and take turns spinning. Zero setup required.
2. 🏠 House Party Mode (Everyone on Their Own Phone)
For living room gatherings: everyone connects to the room code. The prompts focus on group challenges, couple chemistry, close-contact dares, and drinking penalties without anyone huddling over one screen.
3. 🌐 Remote Mode (Online over Discord & FaceTime)
For long-distance friends living in different cities: tailored prompts featuring screenshot dares, photo proofs, and voice confessions designed specifically for voice and video calls.
Ridiculous Spinning Objects
A classic green soda bottle gets boring after five rounds. So we added hilarious alternate physics objects:
- 🐔 Squeaky Rubber Chicken (bends and squeaks wildly on every tilt)
- 🥒 Wobbly Green Pickle
- 🩴 The Flying Slipper (the ultimate throwback)
- 🍾 VIP Golden Champagne
Handcrafted Content Across 5 Categories (1,000+ Cards)
We built custom decks in 5 languages (English, German, Turkish, Spanish, French):
- Ice Breaker: Lighthearted questions designed for groups of 10-15 people who don't know each other well.
- Deep Secrets: Unfiltered confessions you have never told anyone.
- Extreme Dares & Shots: Do the dare or take a penalty shot!
- Flirt & Couples: Sparks and chemistry for dates and parties.
- Spicy +18 (VIP): Uncensored adult party fun.
Tech Stack & Availability
- Frontend & Physics: Flutter & Dart with custom trigonometric physics rendering
- Networking: Real-time synchronized room states with zero noticeable latency
- Platforms: iOS (iPhone/iPad) & Android
Both mobile apps are completely free to download:
- 🍏 Apple App Store (iOS): Download on App Store
- 🤖 Google Play Store (Android): Get it on Google Play
- 🌐 Official Website & Docs: https://61mertkoc-cpu.github.io/wobbly-bottle/
I would love to hear your honest feedback, critique on the physics feel, or crazy object suggestions for the next update!
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