🎮 5Stack – Shared Steam Games Finder

A simple tool that compares your Steam library with your friends’ libraries to instantly find games you can all play together.

🟢 Live at: https://5stack.online/

🚀 What 5Stack Does

5Stack solves the problem of “What game should we play tonight?” by showing you only the games you and your friends actually share.

💡 The Problem It Solves

• Gamers often have large, overlapping Steam libraries but no quick way to find shared games
• Manually scrolling through lists of 100+ games is slow and frustrating
• Steam doesn’t provide an easy to access and intuitive “shared games finder”

🎯 The Solution

• Fast Library Comparison: Compares up to 250 friends’ libraries in seconds
• Smart Filtering: Shows only games shared by selected friends
• Quick Search: Autocomplete helps find friends instantly

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🛠️ Tech Stack

Frontend

• EJS: Dynamic templating for rendering game results
• Bootstrap: Responsive layout and UI components
• HTML/CSS: Core styling and structure

Backend

• Express.js - Lightweight server framework
• Steam Web API - Fetches game library and friend data

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📁 Project Structure

5stack/
├── public/                 # Static assets
│   ├── friends.js          # Handles friend selection and filtering
│   ├── index.html          # Landing page
│   ├── style.css           # Custom styles
│   └── steam.png           # Steam logo image
│
├── views/                  # EJS templates
│   └── profile.ejs         # Profile + game comparison view
│
├── index.js                # Main Express server
├── package.json            # Dependencies and scripts
├── nodemon.json            # Dev server config
└── README.md               # Project docs

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🔄 How It Works

1. Enter Your Steam ID

Click “Login with Steam”
    ↓
Redirect to main page with Cookie
    ↓
Fetches user’s library via Steam API

2. Add Friends

Search friend's Steam usernames
    ↓
Show autocomplete friend list
    ↓
Select friend

3. View Shared Games

Compare libraries
    ↓
Show common games
    ↓
Apply filters if needed

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🔮 Future Enhancements

Technical Improvements:

• Caching Steam Data – Reduce API calls and improve speed
• Advanced Filtering - By genre, playtime, or release date
• Friend Groups - Save friend groups for quick re-checks
• UI Improvements - Create a light/dark mode toggle

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👨‍💻 About

By: Austin Bao

Status: Actively maintained & hosted at https://5stack.online