У вашего броузера проблема в совместимости с HTML5
LibGDX projects are now using Gradle. What is Gradle, what does it do and how does it work? LibGDX documentation page with setup video tutorials by Mario: http://libgdx.badlogicgames.com/documentation.html LibGDX 1.0 released: http://www.badlogicgames.com/wordpress/?p=3412 Stage API changes (Viewport): http://www.badlogicgames.com/wordpress/?p=3322 OpenGL 1.x removed and 3.x added: http://www.badlogicgames.com/wordpress/?p=3311 Thanks for watching :)