“我想玩游戏”用英语可以说：
"I want to play games." 或者更自然一点的表达：
"I want to play games."
"I want to play some games."
"I want to play games online."
如果你是想说“我想玩某个特定的游戏”，比如《英雄联盟》或者《Minecraft》，可以说：
"I want to play League of Legends."
"I want to play Minecraft."
如果你是想说“我想玩游戏”这个意思，最自然的表达就是：
"I want to play games."
如果你有具体的场景，比如你想玩游戏但不知道怎么开始，也可以告诉我，我可以帮你更准确地表达。