*氪金游戏 (Microtransaction-based Games / Pay-to-Win Games)**
指通过游戏内充值购买虚拟道具、角色或服务来提升玩家体验或竞争优势的电子游戏类型。"氪金"一词源自日语「課金」（かきん），原意为"付费"，中文网络用语中特指在游戏中消费的行为。

**Microtransaction-based Games / Pay-to-Win Games**
A type of video game where players can purchase virtual items, characters, or services through in-game payments to enhance their experience or gain competitive advantages. The term "氪金" originates from the Japanese word "課金" (kakin), meaning "payment," and is used in Chinese internet slang to describe spending money in games.