Abstract
This study aims to create a pattern language to support practitioners who intend to introduce game-based learning. Interviews were conducted with four instructors currently practicing game-based learning at an online school for digital games. Then we created a pattern language comprising 18 patterns to support the introduction of game-based learning. A workshop was conducted using the created pattern language. The results confirmed that these language patterns are useful for sharing and exchanging practical knowledge regarding game-based learning among instructors.