BlackJack CLI is a lightweight, terminal-based implementation of the classic Blackjack card game written in C#. It features a human player vs dealer, optional card counting bot, and full game logic including split, double down, and insurance.

Start screen

Place your bet

Example round

Dealer hits Blackjack

• Play classic Blackjack in your terminal (CLI)
• Support for doubling, splitting, and insurance
• Dealer AI and full player decision handling
• Card counting bot that can play for you
• Optimal for card-counting (counter enabled by default)
• Cross-platform: Windows, Linux, macOS
• Self-contained builds (no .NET installation required)

You can type the full command or just the first letter:

• Hit → h
• Stand → s
• Double Down → dd

To turn off card counter type "--count" while running in terminal To turn off card sums type "--sums" while running in terminal To turn on card counting bot type "--bot" while running in terminal

To exit the game: Ctrl+C

• 🪟 Windows x64
  ➡ Download ZIP

• 🐧 Linux x64
  ➡ Download TAR.XZ

• 🍎 macOS x64
  ➡ Download TAR.XZ

Unpack the archive and run the executable inside.

Requires .NET SDK 9.0 or later.

git clone https://github.com/porzeraklon/blackjack.git
cd blackjack

Then build for your target OS:

• 🪟 Windows x64

  dotnet publish -c Release -r win-x64 --self-contained true /p:PublishTrimmed=true

• 🐧 Linux x64

  dotnet publish -c Release -r linux-x64 --self-contained true /p:PublishTrimmed=true

• 🍎 macOS x64

  dotnet publish -c Release -r osx-x64 --self-contained true /p:PublishTrimmed=true

This project was created as a clean, educational example of implementing game logic in a cross-platform CLI environment using .NET. Contributions and forks are welcome.