Sunku Būti Dievu by Arkady Strugatsky

Set in a distant future, the narrative follows an observer from Earth who is stationed on a medieval-like planet where he must adhere to a strict policy of non-interference. As he witnesses the brutal and oppressive society, he grapples with the moral dilemmas of his role, feeling the weight of his powerlessness to intervene in the face of rampant injustice and suffering. The story explores themes of power, responsibility, and the ethical complexities of intervention, as the protagonist is torn between his duty and his conscience.