Is it permissible to play free electronic games that offer huge financial prizes, and is it lawful to accept prizes received after ceasing to play, especially if some of these prizes require shipping fees, or if the website is associated with gambling casinos or Christian proselytizing sites?

Participation in the aforementioned games is forbidden because it requires paying fees, thus rendering it a form of gambling. Furthermore, it involves promoting objectionable matters and advertising disbelief and corruption. Whoever calls to misguidance bears the sin of those who follow him. Additionally, games that do not entail a religious or worldly benefit are not permissible, and it is not permissible to acquire money from them. Any money gained from them must be disposed of in charitable ways, except for what was spent before knowing of its prohibition. This is in accordance with the Almighty's saying: ﴿So whoever receives an admonition from his Lord and stops, then he may keep what is past, and his affair is for Allah. But whoever returns [to interest], then those are the companions of the Fire; they will abide eternally therein.﴾ (Al-Baqarah: 275).