Potch

Potch (ポッチ, Pocchi), localized as Bits in the English-language release of Suikoden, is the currency used in all games of the Suikoden series.

Information
Potch is the unit of money that is in use over a wide variety of regions. Although coinage is slightly bulky, the value of the currency itself tends to remain stable.

How people earn potch can vary greatly. Some simply work in exchange for potch, while some play games or gamble. Large amounts of monsters seem to carry potch as well and defeating them can reap dividends.