Is it permissible to continue publishing videos of normal foreign game "hacks" on a YouTube channel, while earning money from them, or must one stop doing so?

It is not permissible to download "hacker" games for free or for profit, because the owners of the games have rights that must not be violated. The Islamic Fiqh Academy has issued a resolution stating that names, commercial titles, trademarks, authorship, invention, and innovation are special rights belonging to their owners and have a legitimate financial value. It is not permissible to infringe upon them, and it is permissible to dispose of them and transfer them for financial compensation, unless there is harm or deception involved.