Thinking Worlds is an easy to use authoring engine that lets you create, edit, play and share your own 3D learning based games. If you are a gamer, you can develop games without having to shell out for expensive engines or programming expertise. If you are a gamer who is also a student, you can use the tool to learn and present projects and coursework in a game format. You can build a game from scratch, or edit one of the games that already exist.