PostTestServer.dev a simple educational service that allows you to post data to a box and then retrieve it later. This is useful for testing forms, webhooks, and other services that require a public endpoint.
ForenCity started as an experiment to teach university students practical digital forensics techniques. The original problem-based adventure game took the form of a web-based scavenger hunt in which students needed to work with digital evidence while applying their computer forensic knowledge in order to unlock the next stage of the game.
Published research regarding ForenCity can be found on SpringerLink here and here.