Lucky Cubes can be aquired randomly as loot drops from monsters. They can also be purchased from other players, either in person, at a user shop, or from consignment sales.
Lucky cubes are a unique item in Rosh. While the cubes themselves can be aquired for free, from standard hunting of monsters, the keys required to open a lucky cube, must be purchased from the cash shop .
Lucky Cube KeyEdit
Lucky cube keys are often aquired by players, and sold to other players through user shops, consignment, or character to character.
One Lucky Cube Key is required to open a lucky cube. Upon use, the key will disappear.
Opening a Lucky Cube gives you the potential to receive any one of 14 different reward items.
Chart courtesy of the Rosh Website.