I believe my classmates plan to hand in a plagiarized project, how should I handle this? In my class, we have project groups of 4 or 5 students. This period has everything to do with game development. The project is to build a XNA game for children at primary school.

Now, there is one group of students in my class, who snitched a game from the internet and are going to hand that in. I saw a Facebook post from one of the students about "their" game, and a fellow student found almost the exact same game on a Dutch game site.

What is according to you the right way of handling this -in my eyes, plagiarism? Should I inform the project teacher, to have them exposed to the exam committee?
Should I inform the project teacher, to have them exposed to the exam committee?


Yes. Tell the teacher exactly what you know: that there is a game that seems very similar to your classmates' project.

As a student, it's not your responsibility to decide what is and isn't plagiarism, or to decide who should be punished for dishonesty and who shouldn't, or to start a "movement" to let the cheaters know you're onto them. If you believe you have evidence of misconduct, report it and let the administration handle it from there.