He kēmu rautaki wā-tūturu hītori-e hāngai ana te Passage: Empire Earth. Ka whakamahia e Empire Earth ngā whakairoiro 3D. He maha ngā āhuatanga ahurei me te auaha kei roto i te kēmu, tae atu ki te pūnaha "morale", e pā tika ana tatauranga wae takitahi. whakaurua hoki te reira i te pūnaha "hero". Ka taea te hanga Heroes i te pokapū pa, whakapaipai ranei. E rua ngā momo o toa, toa Strategist e whakaora wae tata, me te taea te demoralise wae hoariri, i te mea toa toa Warrior hoatu wairua ki wae tata, me te whai i te mana nui atu te whakaeke. Hei whakamutunga, te kaitākaro te kōwhiringa o te hanga i to ratou ake iwi ki mōhio ahurei. Kei te Empire Earth he ētita mahere tino whānui whakaurua. Pātai: He aha te āhuatanga wehewehe i waenganui i te Strategist me te toa Warrior?
Ko nga toa rautaki e whakaora ana i nga waahanga e karapoti ana ka taea te whakaiti i nga waahanga o te hoariri i te wa e hoatu ana e nga toa toa te wairua ki nga waahanga e karapoti ana me te kaha ake o te whakaeke