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Ethernaut

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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.

Deployed Versions

You can find the current, official version at: ethernaut.openzeppelin.com

Install and Build

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:

  1. Clone the repo and install dependencies:

    git clone [email protected]:OpenZeppelin/ethernaut.git
yarn install

  2. Start deterministic rpc

    yarn network

  3. Import one of the private keys from the ganache-cli output to your Metamask wallet.

  4. Compile contracts

    yarn compile:contracts

  5. Set client/src/constants.js ACTIVE_NETWORK to NETWORKS.LOCAL

  6. Deploy contracts

    yarn deploy:contracts

  7. Start Ethernaut locally

    yarn start:ethernaut

Running locally (goerli network)

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

Running tests

yarn test:contracts

Building

yarn build:ethernaut

Deploying

You will normally need to deploy it on a local network, for this you can just run yarn deploy:contracts and all the contracts will be deployed on your local node running on localhost:8545 and you will be able to check each level address in the deploy.local.json file.

To deploy the contracts on Goerli, first set the ACTIVE_NETWORK variable in constants.js and then edit deploy.goerli.json. This file keeps a history of all level and contract instances. To deploy a new instance, add an "x" entry to the array, like so:

{
  "0": "x",
  "1": "0x4b1d5eb6cd2849c7890bcacd63a6855d1c0e79d5",
  "2": "0xdf51a9e8ce57e7787e4a27dd19880fd7106b9a5c",
  ...
},

Then run yarn deploy:contracts.

Contributing

Contributions and corrections are always welcome!

Please follow the Contributor's Guide if you would like to help out.