ArcWorld Docs
ArcWorld
Arc mainnet is live. Gas is native USDC. This site is the door in.
ArcWorld is where you learn Arc, practice on testnet, and open the mainnet apps: land, vaults, and the sites listed in Ecosystem.
Learn on testnet. Use mainnet when the app is real.
What ArcWorld is
The site currently includes:
- Learn Arc, on Arc testnet
- Eight games, on Arc testnet. Battle Arena is locked
- Faucet, balance check, and send, on Arc testnet
- Arc Virtual Card, on Arc testnet
- Vaults, Morpho vaults on Arc mainnet
- Ecosystem, the directory of sites on Arc
- Arc Land, the mainnet parcel app
A score in Ecosystem is ArcWorld’s checklist, not an audit.
Testnet and Mainnet
Arc mainnet is open. Chain ID is 5042. Gas is native USDC, 18 decimals. The explorer is explorer.arc.io. The RPC is rpc.mainnet.arc.io.
Testnet is only for practice. Chain ID is 5042002. Test USDC has no cash value. On this site you can:
- Connect a wallet
- Claim test USDC
- Read a balance
- Send a small amount
- Open the transaction
- Load and withdraw the test card
Testnet is not real money. Learn Arc, Games, Tools, and the Virtual Card stay on testnet.
Chain ID 5042. USDC gas. Arc Land, Morpho vaults, and the Ecosystem sites. Land opens at app.arcworld.io.
Chain ID 5042002. Learn Arc, Games, Tools, Virtual Card. Test USDC has no cash value.
Learn Arc
Learn Arc explains the basics in plain language:
- What is Arc Network?
- What is a Wallet?
- What is USDC?
- What is Gas?
- How does a Transaction work?
- What is Finality?
- What is an Explorer?
- What are Smart Contracts?
- What can you do on Arc?
The lessons are the testnet path. After them, land and the other mainnet apps are separate.
Games
Eight games on Arc testnet. They are practice, not an arcade. Battle Arena stays locked until it is real.
- Arc Quiz
- Arc Puzzle
- Arc Cipher
- Arc Card Hunt
- Arc Block Rain
- ARC Squares
- ARC Network Race
- Arc Perp
- Battle Arena, coming soon
Tools
Tools is the testnet practice, in this order:
- Faucet — claim test USDC on Arc testnet.
- Balance — read that test balance.
- Send — send a small amount of test USDC.
Arc Land
Mainnet
Explore · Claim · Own
Arc Land is the mainnet parcel app at app.arcworld.io. This site does not sell the parcels. Browse Parcels opens that app in a new tab. The map is 2,500 parcels on a 50×50 grid.
Claim cost
- 1st claim: 0.90 USDC
- 2nd / 3rd / 4th from the same wallet: +40% each (0.90 → 1.26 → 1.76 → 2.47)
- Every 120 public claims: +5% on all four prices
- Max 4 claims per wallet (lifetime). Downtown 10×10 is reserved. Market fee 4%.
Wallet
Connect sits at the bottom left of the shell. Nothing else opens the wallet. Learn Arc and Games do not ask you to connect by themselves.
Supported wallets: MetaMask, OKX, Rainbow, Coinbase Wallet, Rabby, and Trust.
- Learn Arc, Games, Tools, and the card use Arc testnet, chain 5042002.
- Arc Land and the mainnet apps use Arc mainnet, chain 5042.
This site never asks for a seed phrase. A signature still happens in your wallet, not here.
Transactions
An on-chain action becomes a transaction through this path:
Wallet → confirm → USDC gas → transaction hash
On mainnet, read the hash at explorer.arc.io. On testnet, read it at testnet.arcscan.app.
Network
Mainnet is the network for land and the live apps. Testnet is only the practice network on this site.
| Network | Arc Mainnet |
|---|---|
| Chain ID | 5042 |
| Gas | USDC, native, 18 decimals |
| RPC | rpc.mainnet.arc.io |
| Explorer | explorer.arc.io |
| Network | Arc Testnet |
|---|---|
| Chain ID | 5042002 |
| Gas | Test USDC, no cash value |
| RPC | rpc.drpc.testnet.arc.io |
| Explorer | testnet.arcscan.app |
Arc is EVM compatible. Standard Ethereum wallets can add the chain.
Arc Virtual Card
The card is the last testnet step. Load test USDC onto it, then withdraw it back. Those are the two actions.
It is not a bank card, and it is not a real-world card. It does not run on mainnet.