Is the game Runescape, where the player passes through a place of worship to obtain energy, considered polytheism (shirk)?

We do not know the reality of the game, but if the aforementioned place of worship pertains to a polytheistic or pagan worship of any religion other than Islam, then it is not permissible to play with it. This is because it is not permissible to use games that include anything that contradicts Islam, whether in creed or in law.