Designing online games involves a variety of skills that students learn and develop:

1. Programming and Coding: Students have the opportunity to learn basic to advanced programming languages depending on the complexity of the game they are designing. 

2. Graphic Design and Multimedia: Creating online games involves designing graphics, animations, and multimedia elements. 

3. Game Design Principles: Understanding the principles of game design is crucial. This includes concepts such as game mechanics, level design, balancing, and user experience. Students learn how to create engaging gameplay experiences for their peers.

4. Collaboration and Communication: Game design involves teamwork. Students learn to collaborate effectively with their peers, assigning tasks, providing feedback, and working towards a common goal. Communication skills, both written and verbal, are essential for conveying ideas and resolving problems during the development process.