"Terraria" is available on most major gaming systems. As of May, 2015, game players use Xbox 360, Playstation, Playstation Vita, Windows based PCs, and Apple- and Android-based devices to play "Terraria." The official "Terraria" website maintains a comprehensive list of online stores where users can purchase the game.

Xbox and Playstation owners download "Terraria" directly from the respective online game marketplaces. Windows personal computer users buy the game through the Steam store. Apple iPhone and iPad owners must buy the game through its App Store, and owners of Android devices purchase it through Google Play. Kindle users are required to buy the game through the Amazon Appstore.