The virtual roundtable of the Petersburg Historical Journal is devoted to the topic of alternatives in the events of the Revolution of 1917. The researchers examined the issues of the reality of the revival of the monarchy after the abdication of the emperor, the plans and their implementation of the liberal parties before and after the February events, the question of a democratic alternative and attempts to create a homogeneous socialist government, the reasons for the emergence and defeat of the Kornilov affair, the cooperation and struggle between the Bolsheviks and left-wing radical parties after October and at the initial stage of the Civil war.