Planet Centauri v0.6.0.

Changelog v0.6 - Multiplayer version - Beta - New Difficulty modes: Easy - Normal - Hard - Nightmare - New Hardcore mode: Permadeath - New Building mode: Infinite items and no monsters spawn - New Challenges modes (requires to create a new character to select the mode) - Chests fast transfert (shift + clic, can be maintened) - You can erase characters - You can erase worlds Fix: -You can load a non existing world -If you save on a non existing world, can create corrupted saves -You can load a non existing character (cause crash) -Erase manually a world can cause an overwrite when you create a new world