Social Order Maintenance Act Article 84

A person who gambles on property in non-public places or non-publicly accessible casinos shall be punishable by a fine of not more than NTD 9,000.
中文原文 社會秩序維護法第84條
於非公共場所或非公眾得出入之職業賭博場所,賭博財物者,處新臺幣九千元以下罰鍰。

English translation for reference only; the Chinese text prevails. Not legal advice.