players can customize their own dens with furniture, artwork made by themselves or other jammers, and decorations, chat with other players, adopt pets, play mini-games, trade and buy in-game items, such as clothing and furniture, with gems and diamonds as the game's currency, attend parties, and go on various rpg-style adventures. there is a membership feature available that costs real money; only members get access to exclusive dens, pets, animals, and, formerly, adventures, among other things.