Poptropica began selling products via the internet in March 2009, starting with t-shirts through Zazzle. Poptropica also started selling wall prints with various Poptropica characters a few days later through Larger Than Life prints. On May 30, 2009, Poptropica began selling "Poptropica credits" online. Credits are used in the game to "buy" special costumes and abilities. However, players can also obtain credits through the completion of islands.