The creative and building aspects of Minecraft allow players to build constructions out of textured cubes in a 3D procedurally generated world. Other activities in the game include exploration, gathering resources, crafting and combat. Gameplay in its commercial release has two principal modes: survival, which requires players to acquire resources and maintain their health and hunger; and creative, where players have an unlimited supply of resources, the ability to fly, and no health or hunger. A third gameplay mode, named hardcore, is essentially the same as survival, but the difficulty is locked on the hardest setting and respawning is disabled, forcing players to delete their worlds upon death. Minecraft received many awards in 2011 and 2012, including five awards from the 2011 Game Developers Conference. It was awarded the Innovation Award, Best Downloadable Game Award, and the Best Debut Game Award from the Game Developers Choice Awards; and the Audience Award, as well as the Seumas McNally Grand Prize, from the Independent Games Festival in 2011. In 2012, Minecraft was awarded a Golden Joystick Award for being the Best Downloadable Game. As of November 12, 2012 the game has sold over eight million copies on PC and over eleven million copies across all platforms.