What are Slaves? Elvira F May 05, 2014 23:14 Updated Follow Slaves are purchasable assets meant to increase your blood income. You need blood income to afford upkeep costs on powers. Talk about this and other topics in our Community Discussion area ^V^ Related articles What happens if my Bloodflow is in the negative? Is there a limit to how many Slaves I can buy? Comments 0 comments Please sign in to leave a comment.