On Star Army, an ongoing roleplay and/or roleplaying group is usually referred to as a plot. Plots typically have someone who manages them, which is the plot's Game Master (GM). More information about who RP on Star Army is available on the Roleplaying Guide.
This page contains a list of plots on Star Army. It is not comprehensive at this time, as there have been hundreds of previous plots which don't have articles for them yet. Only the plots with a page in the plot: namespace are included.