Quick Start Guide: OP Succinct Fault Dispute Game

This guide provides the fastest path to try out OP Succinct fault dispute games by deploying contracts and running a proposer to create games.

Prerequisites

  • Foundry
  • Rust (latest stable version)
  • L1 and L2 archive node RPC endpoints
  • ETH on L1 for:
    • Contract deployment
    • Game bonds (configurable in factory)
    • Challenge bonds (proof rewards)
    • Transaction fees

Step 1: Deploy Contracts

  1. Clone and setup the repository:

    git clone https://github.com/succinctlabs/op-succinct.git
cd op-succinct/contracts
forge install

  2. Create a .env file in the contracts directory:

    # example .env file

# Required - set these values
GAME_TYPE=42
DISPUTE_GAME_FINALITY_DELAY_SECONDS=604800
MAX_CHALLENGE_DURATION=604800
MAX_PROVE_DURATION=86400
STARTING_ROOT=0xbd4ab027af3c4db0c6b1329dad6d9f8e2505accabec75bfaa2b6b8033c1e60c5...
STARTING_L2_BLOCK_NUMBER=791000

# For testing, use mock verifier
USE_SP1_MOCK_VERIFIER=true

See Getting the Starting Root for more information on how to get the starting root.

  1. Deploy contracts: 
    forge script script/fp/DeployOPSuccinctFDG.s.sol --broadcast --rpc-url <L1_RPC_URL> --private-key <YOUR_PRIVATE_KEY>

Save the output addresses, particularly the FACTORY_ADDRESS output as "Factory Proxy: 0x..."

Step 2: Run the Proposer

  1. Create a .env.proposer file in the project root directory:

    # Required Configuration
L1_RPC=<YOUR_L1_RPC_URL>
L2_RPC=<YOUR_L2_RPC_URL>
FACTORY_ADDRESS=<FACTORY_ADDRESS_FROM_DEPLOYMENT>
GAME_TYPE=42
PRIVATE_KEY=<YOUR_PRIVATE_KEY>
NETWORK_PRIVATE_KEY=0x0000000000000000000000000000000000000000000000000000000000000001

  2. Run the proposer:

    cargo run --bin proposer

(Optional) Run with fast finality mode

  1. Configure more environment variables to the .env.proposer file in the project root directory: 
    FAST_FINALITY_MODE=true
NETWORK_PRIVATE_KEY=0x...
L1_BEACON_RPC=<L1_BEACON_RPC_URL>
L2_NODE_RPC=<L2_NODE_RPC_URL>

To get a whitelisted key on the Succinct Prover Network for OP Succinct, fill out this form. The Succinct team will reach out to you with an RPC endpoint you can use.

  1. Run the proposer: 
    cargo run --bin proposer

Step 3: Run the Challenger

  1. Create a .env.challenger file in the project root directory:

    # Required Configuration
L1_RPC=<YOUR_L1_RPC_URL>
L2_RPC=<YOUR_L2_RPC_URL>
FACTORY_ADDRESS=<FACTORY_ADDRESS_FROM_DEPLOYMENT>
GAME_TYPE=42
PRIVATE_KEY=<YOUR_PRIVATE_KEY>

  2. Run the challenger:

    cargo run --bin challenger

Monitoring

  • Games are created every 1800 blocks by default (via PROPOSAL_INTERVAL_IN_BLOCKS in .env.proposer. See Optional Environment Variables for Proposer)
  • Track games via block explorer using factory/game addresses and tx hashes from logs
  • Both proposer and challenger attempt to resolve eligible games after challenge period

Troubleshooting

Common issues:

  • Deployment fails: Check RPC connection and ETH balance
  • Proposer won't start: Verify environment variables and addresses
  • Games not creating: Check proposer logs for errors and L1,L2 RPC endpoints

For detailed configuration and advanced features, see: