Numbers for Two 🦊🎲
A beautiful, premium, and completely ad-free multiplayer number guessing game of deduction and strategy. Challenge friends online, play locally, or test your skills against our smart AI bot.
The Journey: From Terminal script to Production Game
Every advanced software engineer starts somewhere. Numbers for Two was born during my early learning journey. It started simple: a basic command-line Python script executing in the terminal. The gameplay was minimal: guess a random number, receive HIGHER/LOWER suggestions, and guess again.
As I grew into mobile app engineering, I decided to breathe life into this basic concept. I migrated the codebase to Flutter & Dart, implementing a local Pass & Play mode so two people could compete by passing the phone back and forth.
The final engineering leap was building a full-scale online multiplayer server architecture. Using Supabase for authentication and WebSockets-driven real-time database channels, I developed custom online lobby rooms, public matchmaking queues, profiles leveling (XP), daily puzzle attempt tracking, and cosmetic theme customizations. Today, it stands as a fully finished product on the Google Play Store—completely free and ad-free.
Engineered Game Modes
AI Solo Battle
Offline gameplay against a smart bot. The AI dynamically adapts its guess metrics based on game level thresholds.
Pass & Play
Classic face-to-face board game style on a single device. Features privacy hide-guards to block target numbers.
Online Matching
Real-time WebSocket lobbies. Share a room code or enter automated matchmaking queues to compete globally.
In-Game Interface Showcase
Active Battle Screen
Clues shrink boundaries live on the smart range dial.
Daily Slot Spin
Spin the reels for bonus multipliers and attempt updates.
Visual Color Palettes
Choose from curated styles like Pastel Dream or Neon Cyber.
Private Multiplayer Lobbies
Share simple numeric room codes to connect instantly with friends.
Profile Levels & Gems
Accumulate experience points, level up, and purchase custom theme files.
Advanced Game Features
Smart Range Tracker
The guess boundaries slide automatically as clues arrive. An active slider visualizes what values are left, reducing cognitive overload and boosting logic-solving speed.
Daily Challenges & Streaks
A daily puzzle mechanic built with randomized seed generators. Spin slot reels, trade earned in-game gems for extra lives, and maintain your streak.
XP Leveling & Gem Store
Custom player profile progression system. Earn experience points from wins, level up, and accumulate shiny gems to purchase and unlock thematic color palettes.
Custom UI Color Themes
Engineered with customizable style providers. Users can swap between Pastel Dream, Neon Cyber, Warm Ochre, and Minimal Dark styling dynamically.
Behind the Code
The game runs on a robust backend architecture. Supabase handles user sessions and cloud synchronizations. Multiplayer state sync utilizes Supabase Real-time database channels (WebSockets), establishing room handshakes, sync validation, and matchmaking in under 2 seconds. The client operates under a strict Provider structure, handling local SQLite caches for offline profile access and local games.