“Once in a while, it can be interesting for the characters’ patron to betray them. Pulling that trick more than once in a campaign, though, is likely to make the players unwilling to trust any future patrons and possibly suspicious about any adventure hooks you put in front of them.” - 5R DMG
Sly Flourish对这个问题的观点是：
主要任务发布NPC的背叛存在三大问题：
- 玩家对你失去信任。
- 玩家对游戏世界产生怀疑。
- 若背叛过早暴露，依赖NPC背叛展开的冒险很容易崩溃。
一种替代的方式是引入（明知）可疑的NPC，让玩家的行动决定后果。
Above all, shady NPCs give the characters agency. The characters know what’s going on. They aren’t being led by the nose through a pre-conceived plot. Instead, they’re working with the variables they have and thus the story unfolds as they make their decisions.