The game is the first in the series to feature online multiplayer with access to a massively multiplayer persistent world called Open Play, as well as an online-only single player mode. Open Play gameplay is similar to "Eve Online" in that many actions that would be considered griefing in other multiplayer games are generally permitted, as long as there is a valid roleplaying reason (e.g. robbery, extortion and blocking off star systems). However, some actions, such as "mob mentality" persecution of players, exploiting mechanics of the game (such as quitting the game in the middle of a fight to avoid death), and swearing are not allowed, and could result in a ban from the main server.