Isis: The Fall v1.02 by Tjord Win/Mac - Adult Sex Game

Amidst centuries-long space conflict between Alliance of Free Planets and Neo-Terran Confederacy, allied crusier FSS "Isis" is sent on a mission that could turn the tides of war. However, among it's crew, there's one officer that wants to pursue his own devious plan...
Isis: The Fall is a visual novel in which you follow one man's quest for revenge. Seven powerful female crew members of "Isis" are ripe for conquest; can you bring them to fall and save your homeland from another defeat?