“你在游戏英语怎么说？”
这句话的英文翻译是：
"What is 'you' in English when you're playing a game?"
或者更自然一点的表达方式：
"What does 'you' mean in English when you're playing a game?"
如果你是想问“你在游戏里说什么”或者“你在游戏里用英语怎么说”，那可以翻译为：
"What do you say when you're playing a game in English?"
如果你有具体的语境，我可以帮你更准确地翻译。