Unity 1[edit]
Unity 1.0 was announced at the Apple Worldwide Developers Conference in 2005 and was released on June 8, 2005. The initial release was limited to OS X, both for authoring and game publishing. Features at the time included a shader-oriented OpenGL renderer, physics powered by the Novodex (now PhysX) physics engine, audio support and C# scripting support.[20] The package was available in both a low-priced 'Indie' edition, and a higher-priced 'Pro' edition which included some extra features.
Over subsequent 1.x versions, significant additions included support for building games to run on Windows, both as standalone applications and also in browsers via a browser plugin.[21]