Apparently, you can not play the phenomenal mobile game Pokemon Go in Saudi Arabia.
This is because of a “fatwa”(no. 21,758) which was issued in 2001, banning it from the nation.
A Fatwa is a rule in the Islamic law given by a recognized authority.
The fatwa no. 21758 states that Pokemon game cards, which was very popular back then, is a form of gambling, which is forbidden in Islam. On top of containing polytheistic symbols, the game is also said to promote Darwin’s theory of evolution, both seen as religious violations in Islam.
The General Secretariat of the Council of Senior Scholars has renewed the fatwa, stating that the new version of the game, Pokemon Go, is the same as the old one.
Looks like you have to look for alternatives if you want to hunt Pokemon while living in Saudi Arabia.
The entire Fatwa is here: