在角色扮演游戏中，状态效果是对游戏角色初始能力值的暂时改变，这多因战斗中使用特殊力量或能力（比如魔法）而出现。状态效果在各种类型的电子游戏中都有出现，其中最常见的是电子角色扮演游戏。状态效果既可能是强化角色，也能是弱化角色。特别是在MMORPG中，有益效果被称作增益（buff），负面效果被称作减益（debuff）。

In role-playing games, a status effect is a temporary modification to a game character’s original set of stats that usually comes into play when special powers and abilities (such as spells) are used, often during combat. It appears in numerous computer and video games of many genres, most commonly in role-playing video games. The term status effect can be applied both to changes that provide a character an advantage (increased attributes, defensive barriers, regeneration), and those that hinder the character (decreased attributes, incapacitation, degeneration). Especially in MMORPGs, beneficial effects are referred to as buffs, and hindering effects are called debuffs.