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Ethernaut is a Web3/Solidity based wargame inspired by overthewire, to be played in the Ethereum Virtual Machine. Each level is a smart contract that needs to be 'hacked'.
The game acts both as a tool for those interested in learning ethereum, and as a way to catalogue historical hacks as levels. There can be an infinite number of levels and the game does not require to be played in any particular order.
You can find the current, official version at: ethernaut.openzeppelin.com
There are three components to Ethernaut that are needed to run/deploy in order to work with it locally:
- Test Network - A testnet that is running locally, like ganache, hardhat network, geth, etc
- Contract Deployment - In order to work with the contracts, they must be deployed to the locally running testnet
- The Client/Frontend - This is a React app that runs locally and can be accessed on localhost:3000
In order to install, build, and run Ethernaut locally, follow these instructions:
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Clone the repo and install dependencies:
git clone git@github.com:OpenZeppelin/ethernaut.git yarn install
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Start deterministic rpc
yarn network
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Import one of the private keys from the ganache-cli output to your Metamask wallet.
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Compile contracts
yarn compile:contracts
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Set client/src/constants.js ACTIVE_NETWORK to NETWORKS.LOCAL
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Deploy contracts
yarn deploy:contracts
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Start Ethernaut locally
yarn start:ethernaut
The same as using the local network but steps 2, 3 and 6 are not necessary.
In this case, replace point 5 with: 5. Set client/src/constants.js ACTIVE_NETWORK to NETWORKS.GOERLI
yarn test:contracts
yarn build:ethernaut
To deploy the contracts on goerli, first set the ACTIVE_NETWORK variable in constants.js and then edit gamedata.json. This file keeps a history of all level instances in each level data's deployed_goerli array. To deploy a new instance, add an "x" entry to the array, like so:
"deployed_goerli": [
"x",
"0x4b1d5eb6cd2849c7890bcacd63a6855d1c0e79d5",
"0xdf51a9e8ce57e7787e4a27dd19880fd7106b9a5c"
],
Then run yarn deploy:contracts
. This action will effectively deploy a new version of the level data item whose deployed_goerli array was updated, and will point the ethernaut dapp to use this new deployed contract instance for the level.
Contributions and corrections are always welcome!
Please follow the Contributor's Guide if you would like to help out.