DEBCO is the only pass currency enable players to exchange and trade across the real world and the world of endless wars between Vampires and Slayers.
It is a new digital asset that uses a novel concept to allow the asset of the two world to be freely traded.

Tier Medal

You can obtain Tier Medal
when you kill another race or complete a race mission.
It is the only currency can prove yourself by upgrading your tier,
and you can trade Tier Medal to DEBCO.