Course Game-303 at Southern New Hampshire University focused on the fundamental ideas behind the design of virtual environments within video games. It touches on fields such as systems theory, cybernetics, and game theory. Alongside this are basics of interactive design, interface design, information design, and human-computer interaction. This emphasizes on how virtual environments within video games function to create experiences, including rule design, play mechanics, game balancing, social game interaction, and the integration of visual, audio, tactile, and texture elements.