> For the complete documentation index, see [llms.txt](https://docs.cashcity.fun/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cashcity.fun/economy.md).

# Economy

- [The Earning Formula](https://docs.cashcity.fun/economy/economy.md): The math behind your earnings.
- [Pack Economics](https://docs.cashcity.fun/economy/packs.md): The expected value of every pack type.
- [Referral Program](https://docs.cashcity.fun/economy/referrals.md): Every player is a gateway. Invite codes are the only way in.