Full list of all 10 Citizens of Earth trophies - 7 bronze, 1 silver and 2 gold. It takes around 20-25 hours to unlock all of the trophies on PlayStation 4.
Recruit 5 citizens
Recruit 25 citizens
Recruit all 40 citizens
Find 100 treasures
Discover 30 locations
Defeat the Secretary Supreme
Enroll 9 citizens simultaneously in School
Complete all Wanted Poster quests
Complete all Extermination quests
Discover all Photography landmarks