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The computer game Blitzkrieg 2 is the second installment of the legendary series of real-time strategy war games, developed by Nival Interactive and released in 2005.

The game is still available on Steam and GOG.com.

In 2025, the game's source code was released under a special license that prohibits commercial use but is completely open for the game's community, education and research. Please review the terms of the license agreement carefully before using it.

• Game engine: Custom 3D "Enigma" engine, mostly written in C++
• Scripting language: Lua
• Animation: Granny Animation (RAD Game Tools) - from uesp-esoapps
• Audio: FLESSD sound system - Open source version of FMOD (based on SDL3)
• Video: FFMPEG video library

• Old BK2 source code was ported to modern Visual Studio 2026, CMake
• BK2 can now also be compiled as 64 bit app
• Replaced FMOD with FLESSD
• Removed dependence on S3TC lib
• Some new features:
  • Added an option to disable certain techlevels for certain nations in MP
  • Reworked reinforcement inheritance system in MP
  • Fixed the "green team base capping advantage" on neutral bases by introducing the contested base state
  • Player color pallete (HP bars) now supports up to 16 colors (which is also the max possible number of players)

• Complete — game data and resources
• Design — design documents and art resources
• Soft — source code and development tools
• Sound — game sound resources
• Tools — development and build tools
• Localizations — localization files
• Versions — different build configurations and testing environments
• Versions/Temporary/Engine/Sources — complete game engine source code

1. Navigate to the Complete/bin/ directory
2. Run the game executable (if available)

• Location: Complete/Editor/
• Documentation: Design/Manuals/MapEditorManual/
• Manual: Design/Manuals/MapEditorManual/Final/
• FAQ: Design/Manuals/MapEditorManual/FAQ/

• Maya plugins: Tools/MayaScripts/
• Texture converters: Tools/TexConv.exe, Tools/DxTex.exe
• Font generator: Tools/FontGen.exe
• Granny tools: Tools/Granny/

See Contributing.md file.

For support, you can join the discord server.

This project is released under a special non-commercial license from NIVAL INTERNATIONAL LTD.

• Game engine source code - Custom license from NIVAL INTERNATIONAL LTD (non-commercial use only)
• zlib compression library - zlib License (permissive, commercial use allowed) replaced by zlib-ng
• Game scripts, assets, and data - Custom license from NIVAL INTERNATIONAL LTD (non-commercial use only)

• zlib (v1.1.3) - Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler - zlib License replaced by zlib-ng

Please review the complete license agreement before using this code.