"The Fall of the Mutants" was a comic book crossover event by Marvel Comics spanning January to March 1988. It spanned three issues each of The Uncanny X-Men (issues #225–227), X-Factor (issues #24–26), and The New Mutants (issues #59–61); unlike most crossovers however, the various titles' storylines did not intertwine, but were instead linked thematically as each team underwent major ordeals and drastic changes in their status quo. The 1990 computer game X-Men II: The Fall of the Mutants was based on this storyline.