Club Penguin is an online-based, massively multiplayer online role-playing game (abbreviated as a MMORPG) created by New Horizon Interactive in the summer of 2005. It had a public Beta Testing in August 2005, and was officially launched on October 24, 2005. It involves a virtual world, where all the players are penguins, and is featuring a large range of minigames and tons of other online activities, and is based on a snowy island, after which the game is named. Club Penguin has been noted as sharing similarities with other popular browser-based online environments such as RuneScape and Habbo Hotel, such as the use of an in-game currency to purchase virtual items and pets, named "puffles". The game is specifically designed for players within the ages of 6-14, thus child safety is a vital responsibility of the game's developers. The game was founded by Lance Priebe, and co-founded by Lane Merrifield, and Dave Krysko. It is now estimated that over 150 million people worldwide play the game, which was originally built on a Smart Fox Server.