Scroll zkEVM Beginner's Guide

This article will introduce beginners to how to interact with L2 Dapps, using Scroll zkEVM as an example. We will illustrate the entire process through an on-chain tic-tac-toe game running on the Scroll L2 network. These skills are also applicable to other layer two networks.

Preparation: Install Wallet

If you haven't installed Metamask or a similar cryptocurrency wallet yet, please complete the installation first. Metamask is a commonly used browser extension wallet that supports multiple devices.

Step 1: Set up the test network

Scroll zkEVM has currently launched its alpha testnet, which is a Layer 2 network compatible with the Ethereum Virtual Machine (EVM). This means that smart contracts written for Ethereum can be deployed directly on Scroll zkEVM. The Scroll L2 alpha testnet is currently connected to the Ethereum Goerli testnet, ensuring finality by batch submitting transactions to the Goerli L1 network.

To get started, please visit the official Scroll website and follow the instructions to add the Scroll L2 network and Goerli testnet to your wallet.

Step 2: Obtain Test Coins

Next, you need to obtain some ETH from the Goerli testnet. There are multiple faucets to choose from:

1. The faucet provided by Alchemy allows you to receive 0.2 ETH each time, registration is required.
2. A faucet based on proof of work that allows you to obtain more ETH through "mining."
3. The Paradigm faucet requires Twitter login and allows you to receive 0.1 ETH each time.

You can choose one or combine multiple faucets to obtain enough test ETH.

Step 3: Cross-Chain Transfer

After obtaining Goerli testnet ETH, the next step is to transfer some ETH to the Scroll L2 testnet. Visit the cross-chain bridge interface of Scroll and follow the instructions to transfer ETH to your address on Scroll L2. Please note that this process may take some time to complete.

Step 4: Experience On-Chain Games

Now you can try playing the on-chain tic-tac-toe game on Scroll L2. Visit the game website, connect your wallet, and create a new game. You need to enter your opponent's address, or you can use another wallet address of your own as the opponent.

After selecting the created game, you can start playing tic-tac-toe on the chain. This game also has an interesting feature: if you make a mistake at any step or do not want to lose the game, you can reset the game at any time.

Step 5 (Optional): Explore More Dapps

If you want to try more decentralized applications and games on Scroll, you can visit Scroll's app showcase page, where there are more interesting projects waiting for you to explore.

Through this beginner's guide, you should have grasped how to perform basic operations and interactions on Layer 2 networks like Scroll zkEVM. As you become more familiar with these technologies, you will be able to engage more deeply in the Web3 ecosystem.