Fiction

No it is not permissible to watch games of videos promoting polytheism like fictional gods or worshiping other than Allah, The Exalted.

Such games are dangerously harmful in making the people accept polytheism and normalise major sins.

Wassalam.

Allah (SWT) Revives the life of whomever He Wants, so it is allowed to be mentiined because it is definitely possible for Allah (SWT).

Wassalam.

Magic is forbidden in Islam as it is one of major sins. Allah Says in Quran: The magician will never be successful whatever he goes. (Sura Taha, verse 69).

Any act related to promoting magic is also forbidden. Fantasy novels that include depictions of Magic is not permissible.

‘Wassalam.

It is allowed to write fiction stories which does not encourage nor spread wrong ideas or acts.

Wassalam.

Reading novels is permissible provided the contents of it is not harmful to you whether emotionally or Psychologically or any other harm. Skipping the harmful parts and reading the rest is permissible with the above condition.

Wassalam. 

Every act which is useful for people is allowed and every act which is harmful is not allowed. Allah says in Quran يُحِلُّ لَهُم الطَيّبات وَيُحَرِّمُ عليهم الخبائث which means that the religion of Islam allows every good and does not allow every bad.

Writing is no exception. Writing can be useful to provide useful information and encourage good values and good deeds, and can be otherwise. Writing fictional horror stories or novels of fear and violence should be judged by the amount of harm or benefit of it to the human society. If it is harmful, then it must be avoided.

Wassalam.

Reading or writing financial books is allowed as far as it does not encourage unlawful transactions or usury. Fairy tails books are also allowed as far as it does not contain misleading or wrong statements and it should not waste lot of time because time is our main capital in this life and we must utilize it in the nest way.

Wassalam.