Immutable zkEVM Testnet is a zero-knowledge, EVM-equivalent Layer 2 built with Polygon zkEVM technology, settling to Ethereum and using tIMX as the native gas for testing. It’s used to trial cross-chain bridging, mint and trade ERC-20/721/1155 game assets, run on-chain gameplay loops, and integrate Immutable Passport, Orderbook, and SDKs prior to mainnet. For benchmarking, developers typically see ~2s block times, tens of TPS with >100 TPS in stress tests, and near-zero effective gas spend in tIMX, alongside active contract deployments and asset mints.
It’s purpose-built for web3 gaming: IMX/tIMX-denominated gas, native Global Orderbook liquidity, Passport single-sign-on wallets, gas sponsorship (meta-transactions), and SDKs that streamline minting, trading, and player onboarding. The network pairs Ethereum-grade security via ZK validity proofs with fast finality and predictable fees (avg L2 fee typically under a few cents on mainnet; on testnet paid in tIMX) and efficient batch minting for high-volume assets. Compared to generic L2s, its observed metrics—~2s blocks, sustained tens-of-TPS throughput with burst capacity >100 TPS, and low single-digit cent fees in mainnet-like conditions—optimize it for large-scale game economies and marketplaces.
Immutable zkEVM Testnet uses tIMX as the gas token for transaction fees. You can obtain tIMX by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).
To bridge tIMX to Immutable zkEVM Testnet, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select Immutable zkEVM Testnet as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on Immutable zkEVM Testnet you can use thirdweb, which provides an easy way to build, monetize and scale your apps, games or agents. You can find detailed guides and documentation on https://portal.thirdweb.com to get started quickly.
To add Immutable zkEVM Testnet to your wallet, you can connect your wallet and click on [Add to Wallet] button at the top of the page. Alternatively, you can add the network manually using the RPC URL and chain details and add it to your wallet's network settings.
To send tIMX on Immutable zkEVM Testnet, ensure your wallet is connected to the Immutable zkEVM Testnet network, enter the recipient's address, specify the amount of tIMX to send, review the gas fee, and confirm the transaction in your wallet.