Moshi Monsters was released in 2007 by the British firm Mind Games. Like Club Penguin, Moshi Monsters caters to a young audience. (8-12 year olds are the target) Like many other web based games, Moshi Monsters is a mix between a social network and an online game.

Players start by adopting a monster of which there are six types. There are several color templates and later players can purchase clothing to further customize their monster. The main goal in Moshi Monsters is to keep your monster well fed and entertained. There are several indicators to track your monster's status; Mood, Health, and Happiness. The best way to care for your monster is to feed it and play mini games regularly. New players will start out in their own home which can be customized to a great degree. New wall papers and furniture can be purchased at the 'Yukea' store. The game currency in Moshi Monsters is 'Rox' which is earned by playing mini games.

Your main Rox earner is the daily puzzle which can only be played once a day. This game is a series of timed visual questions which are similar to the mini games found in Nintendo's Brain Age. Players can earn around 100 Rox through the Daily Puzzle. Individual puzzle mini games can be replayed but the Rox prize they offer is much smaller. There are currently two other mini games in Moshi Monsters; En-Gem and Flutterby Field. En-Gem is a classic puzzle game where players must align four or more squares of the same color, the goal being to get the highest score possible before time runs out. Flutterby Field is more action oriented, players must catch various hued butterflies and avoid touching the other bugs. There is no time limit, the game ends when the player's hp runs out. Both games have three difficulty settings; easy medium and hard. I found the Rox reward to be rather low for both games but they are repeatable so the only limit to your Rox earning capability is your patience.