All you need to trade is a wallet. Fairground runs on Arbitrum Sepolia (testnet), and eligible wallets receive testnet USDC and ETH automatically, so you don’t need to bring your own funds.
1. Get access
Season 4 is open to:
- Active traders from previous seasons. Connect the wallet you registered with in an earlier season.
- New traders with a referral link. Ask an active trader from a previous season for a referral link and register through it.
See the Season 4 FAQ for who qualifies as an active trader and how referrals work.
2. Connect your wallet
Option A: Use an existing wallet
Connect any EVM-compatible wallet (MetaMask, Rabby, WalletConnect, Coinbase Wallet, etc.).
Option B: Create one with social login
Sign up with your email, Google, X, Telegram, or Discord. A wallet is created for you automatically.
You can find the public address of this wallet by expanding the wallet dropdown and clicking the copy icon within the Privy (Embedded) pane.
3. Receiving ETH and Test USDC on Arbitrum Sepolia
Once you have access, your wallet receives enough testnet ETH to pay gas fees and test USDC to use as collateral for opening positions in the app.
Your wallet will be granted additional test USDC every day at 16:00 UTC during the season.
The address of the test USDC token used for this season is: 0x4E1156749dd156D06dCE5baC0f8f5A43792C9EDb
Notes for users bringing their own wallet
If you’re using your own wallet, you’ll probably need to add the Arbitrum Sepolia network to it. The easiest way to do this is to navigate to https://sepolia.arbiscan.io/ and scroll down to the footer menu. You’ll see a button to Add Arbitrum Sepolia Network. Click that and it should open the pane in your wallet to add the custom network.
If you need to manually add the network, you can use the following information:
Last modified on October 23, 2026
