For University of Arizona’s Spring 2015 Game Jam, I found four team members without prior game development experience and had a blast making a soothing multiplayer planetary conquest game.
In fact, the team was excited about the game that we decided to make a full version.
Planets silently orbit custom solar systems, and when two planets are closely aligned, either player may use keyboard keys to “capture” the other planet. The game continues until one player’s starting planet is captured.
Several players thought that the game could function as a pretty screensaver as well.
The game can be found here.