Most games have a set maximum earnings or playtime. Games come in many different genres, which include action, puzzles, and luck & chance. Users can earn Neopoints from playing games. There are different types of submissions that will be accepted. User contributions come in the form of prescreened submissions and readily editable content that is automatically filtered, such as the site's weekly electronic newspaper The Neopian Times. In addition to the site content updated by the Neopets staff members, users also contribute content to the site. The site is regularly updated with features like new games, items and content. While there is no set objective for users, interactive storylines are sometimes released that introduce changes to the planet such as new lands. Users can earn Neopoints through various means including playing games and selling items, which can be invested or used to buy various virtual goods and services. It has its own economy and stock market based on Neopoints. Neopia follows its own calendar and time zone, which runs concurrent with real-world Pacific Time, and has tie-ins with certain real world holidays such as Halloween and Christmas. Each land has a different theme, such as pirates or prehistoric times, and their own shops, games, and attractions. Neopia is a virtual planet with fantasy lands inhabited by Neopets and other virtual creatures. Neopets can battle against other Neopets or non-player characters in the Battledome but they cannot die there. Users can build a customisable Neohome for their Neopets and furnish it with furniture, wallpaper, and flooring. Neopets can be customised with certain clothing items, paint brushes, transformation potions, and accessories. Users can obtain items to interact with their Neopet, such as books to read and toys to play with them. Neopets come in a variety of species and colors and users can create or adopt their own. Neopets will not die if neglected, but their health can limit their gameplay. There is no set objective for the users, but they are expected to feed and care for their Neopets when they grow hungry or ill. Neopets allows users to create and care for virtual pets called Neopets and explore the virtual world of Neopia.