OK so the way the forum games are is;You sign up for a game in a thread created by the GM(game master),then on that character sheet ,which you sign up with, lists all the stuff of your character (personality,magic abilities,physical abiliies,inventory items,etc.) After that the GM either approves your character or tells you to take off some things if they are overpowered.
Playing forum games is like story games where you are given a scenario but you get to choose any action you can think of and the GM says if you suceed or fail doing the action.Also when playing you can't powerplay like shooting someone and say that you automatically kill them,the GM decides that
Am I missing details?