What is the criteria for a project to be considered valid for my application, since I have done multiple projects for a Master's?

Yes, including relevant projects can strengthen your master's application.

Focus on projects that:
- Directly relate to your chosen field (e.g., Computer Science projects for a Computer Science program)
- Show technical depth or problem-solving ability
- Clearly highlight your individual contributions, especially in group work
- Demonstrate a measurable outcome or impact
- Can be supported with documentation (code, reports, presentations)

Highlight 2 - 3 of your most relevant and impactful projects. Prioritize quality over quantity for the best impression.