A complete, dynamic environment for games and simulation

trueSKY™ is the most advanced and reliable sky system available.The trueSKY™ SDK generates weather system data and updates it in real time. trueSKY™ creates volumetric cloud and atmospherics data on the GPU, and provides realtime access to that data via a lightweight API. The SDK is cross-platform and renderer-independent.

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Over 40 Leading Developers Choose trueSKY

Games Customers

ArcaniA™ Spellbound Entertainment PC
ARMA III™ Bohemia Interactive PC
BIRDS OF STEEL™ Gaijin Entertainment Xbox 360
DAYZ™ Bohemia Interactive PC
DRIVECLUB™ Evolution Studios PlayStation 4
TAKE ON HELICOPTERS™ Bohemia Interactive PC
SKYDIVE™ Gaijin Entertainment PlayStation 3, Xbox 360
WAR THUNDER™ Gaijin Entertainment PlayStation 4
Unannounced Ubisoft Unannounced
ARK Studio Wildcard Windows, Mac, Linux, PlayStation 4, Xbox One


Simulation Customers

Diamond Visionics
FlightSafety International
Rheinmetall Defence Electronics


The trueSKY advantage

Real-looking skies are universal – so why reinvent the wheel? trueSKY™ has been used by the world’s leading game developers and Fortune 500 companies, to deliver speed, visual quality and flexibility. Instead of spending vital man-months on recreating the sky, you can have perfect skies, instantly, and concentrate your resources where they’re most needed.

Engine Plugins

Including trueSKY in a project built on DirectX 11, OpenGL or on console is as straightforward as including the trueSKY API calls in your rendering pipeline. For games built on UnrealEngine 4, or Unity, the process is even simpler – just add the plugin to any existing project.

  • Fully adjustable for maximum performance and quality
  • High dynamic range physically-based rendering
  • Tuned for high performance on next-generation renderers
  • Advanced toolset for full control
  • Add visual impact and realism
  • Reduce development costs and time
  • Gain performance savings

Licensing trueSKY

For developers interested in a source code licence, the complete trueSKY SDK can be evaluated for up to 30 days. Register here for more information.

For indie developers, we offer the trueSKY Alpha Unity plugin, and the trueSKY Alpha Unreal Engine 4 plugin.


  • Live, realtime volumetric clouds
  • Eye-wateringly fast: light on CPU, GPU, and memory.
  • GPU data-generation
  • Realtime weather-changes
  • Industry-leading time-of-day effects
  • Atmospherics for distance fading
  • Thunder and lightning
  • Godrays
  • Clouds you can fly through
  • Clouds that mix with the landscape
  • Simple C++ API
  • Renderer-independent
  • Drop-in sample rendering source code and shaders for OpenGL, DirectX 11, console API’s and major game engines.
  • Works with any 3D API or engine
  • Built-in binary and XML data streaming

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