ABSTRACT
For games that feature microtransactions, it often makes some sense to complicate the in-game economy a bit, by introducing a secondary form of currency that is tied to realworld money. This dual currency system is so common these days that it could almost be considered a standard design trope. Dual currency models typically divide into “soft” currencies, which are awarded in-game and have no real-world value, and “hard” currencies, which are derived from real-world money. There are both game-design and logistic reasons for adopting a dual currency model, both of which we’ll explore in this chapter.
