Complete the Cyborg questline from the designated NPC
Collect the required materials or items for the quest
Defeat the required boss or enemies if the quest demands it
Turn in the quest to unlock the Cyborg race
If the race is obtained through a special event, participate and claim it from the event reward
If the race is obtained through a shop, purchase it with the required currency
If the race is obtained through a random roll, keep rerolling until you get it