Well, the goal of S.T.A.L.K.E.R. RP is to give players a chance to enjoy the Stalker series of games in the form of roleplay. Players will create a character, or their outlet to the roleplay, and will play is accordingly. For example, if you join the Military faction, your goal is to rid the Zone of Stalkers and Bandits alike, through force. As a Stalker, you will look for things to sell to traders, such as weapons and artifacts.
