> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chance.money/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> CHANCE is the protocol token; USDG is the money. How the two relate.

Two tokens, two jobs:

| Token      | Role                                                                                                                                                    |
| ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **USDG**   | The betting currency. Stakes, payouts, bankroll, and staking deposits are all USDG                                                                      |
| **CHANCE** | The protocol token. An optional payout currency for winners, a reward currency for stakers, and the asset in the protocol's Uniswap V4 CHANCE/USDG pool |

You never need CHANCE to play — every bet is placed and can be paid out entirely in USDG.

## Where CHANCE enters the picture

* **Winners can claim in CHANCE.** Choosing `claimAsChance` spends the full USDG payout buying CHANCE on the V4 pool at claim time. See [Claiming](/integrate/claiming) and [Acquiring](/chance-token/acquiring).
* **Stakers can earn in CHANCE.** House-win shares for CHANCE-mode stakers are converted on the same pool. See [Staking rewards](/staking/rewards).
* **House wins buy CHANCE.** A portion of every house win (weighted by staker reward modes) is spent on the pool — gameplay itself creates structural buy pressure.

## Two properties that shape everything

1. **Transfer-locked by default.** CHANCE is not freely transferable between wallets until the lock is lifted. Gameplay claims, reward paths, and pool swaps work; P2P sends don't. Details: [Transfer lock](/chance-token/transfer-lock).
2. **Sells are always open.** CHANCE→USDG swaps through the public Uniswap V4 router are allowed for anyone, even under the lock. Buys on the pool are gated. Details: [Selling](/chance-token/selling).