The October Objectives Title update for Crusaders of the Lost Idols has 4 achievements.
Complete the 'Echoes' objective by beating area 600 in the 'Idols Through Time' campaign while under attack from yourselves.
Complete the 'Hamstrung' objective by beating area 600 in the 'Idols Through Time' campaign without any useless DPS Crusaders.
Complete the 'The Lost World' objective by beating area 650 in the 'Idols Through Time' campaign while fending off tough new Dinos.
Complete the 'Atrophy' objective by beating area 700 in the 'Idols Through Time' campaign while your Crusaders constantly take damage.