World War III has broken out! The United States, now the main battlefield, is under invasion from external forces! Warrior, pick up your weapons and defend your homeland. Choose your preferred weapon and join forces with the beautiful commanders to form your tactical defense squad! -3D roguelike , hundreds of various armed enemies attack in land&sea&sky. -Story champaign, witness the dramatic changes in the US during World War III. - New RANK mode, fend off countless waves of enemies. -8 beautiful commanders from around the world will assist you. -Build your own defensive stronghold with 60 different pieces of equipment.