Backpacker is an iPhone game that allows you to travel around the world, answering trivia questions and completing missions to earn money. The game begins with you stranded in Rome with only 500 coins to your name. To continue traveling, you must complete missions and odd jobs to save up enough money. At the end of each day, you have to decide whether to splurge on a hotel or risk sleeping on the streets.

One of the game's main features is testing your trivia skills, allowing you to learn while you travel. You can also collect tokens from each city to complete your memento collection, earn job diplomas and cash for traveling, and help strangers around the world for secret rewards. Additionally, you can stamp your passport in each city you visit and play mini-games to earn rewards.

Overall, Backpacker is a fun and engaging game that combines trivia and adventure to create a unique experience. The graphics are visually appealing, and the gameplay is smooth and intuitive. However, some items in the app require a weekly auto-renewing subscription at $3.49, which could be a drawback for some players.