Rial Rial is the primary currency used in Simuhay, taking the form of crystalline leaves. There are four known varieties of rial: White (least valuable)Green (each worth 10 white rial)Blue (each worth 10 green rial, or 100 white rial)Purple (each worth 10 blue rial, or 1000 white rial) Rial grows on trees with thick oak-like trunks and thin, brittle branches that often collapse under their own weight. As such, “leaves” is often used as a colloquial term for the currency.