Board Thread:Chinese content/@comment-27482602-20170902021844/@comment-30336302-20170922134551

I want to say that EVEN IF YOU UPGRADE IT TO LEVEL 4, its range will not increase. If you understand chinese, you can see the thing it upgrade. It means that your costs of the plague decreases and the health healed is increased for the Serum.

Btw, the youtube is not me. I don't have a level 2+ Zombie Serum but I still get a 4x3 range.