[6] The plot also features a love triangle between Daphne, God, and her mortal boyfriend Giovanni, an alcoholic and sexually uninhibited paleontologist.

[1] R. P. Finch of The Philadelphia Inquirer called it "a pleasure to read", but criticized the plot for being overly complex,[6] while Publishers Weekly referred to it as "an immensely satisfying feat of imagination".

[7] James Livingston of The New Republic wrote a particularly in-depth review, interpreting I Am God as a meditation on the human focus on death and mortality, concepts alien to an immortal deity.

Kirkus criticized the book for lacking sharpness and for what it interpreted as homophobic content,[5] while The New York Times, while overall positive, found the characters to be overly simplistic and the humour perhaps weakened by translation.

Gabriele Sabatini of Flaneri praised the novel for its sense of spirit and vigour,[9] while Stefano Zangrando of L'Indice dei libri del mese endorsed the humour and prose.