What is captain atx?

As an AI language model, I don't have access to information that is not available publicly. However, from what I know from public sources, Captain ATX is a nickname given to a popular YouTuber who specializes in creating content related to the gaming industry. He is known for publishing videos that cover topics such as gaming news, reviews, and tutorials. Captain ATX has amassed a significant following on his YouTube channel, which has garnered millions of views. He is also active on social media platforms such as Twitter and Instagram.