On top of that, the game master can control NPCs, add quests, and make rule adjustments on the fly. For example, you can designate one of the playable characters as a kleptomaniac, so whenever they're near an object that can be stolen, you'll have to roll a dice to determine if that character resists the urge to steal or not. Additionally, because there is a game master, you can create various role-playing events not possible in a normal campaign. You can even create new quests, levels, and alter any of the existing assets, allowing you to go as far as creating a sci-fi campaign if you have the patience. When creating a campaign, you can use any asset within the game, such as characters, items, etc, and import new, user-made assets as well. Outstanding multiplayer mode that allows for endless content D:OS2 features a Game Master mode, which lets you create custom multiplayer campaigns for up to 4 players, with the 5th player assuming the role of a Game Master.