# New foundations for Immutable Chain: an OP Stack rollup on Ethereum

Immutable Chain, the network games run on, is changing how it works under the hood. Immutable plans to rebuild the chain on OP Stack and turn it into an Ethereum rollup. Block time drops from 2 seconds to 1 second, and bridging will work through proofs checked on Ethereum. The company is targeting t

| Fact | Value |
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| Published | 6 November 2026 |

Source: https://cryptogames.gg/new-foundations-for-immutable-chain-an-op-stack-rollup-on-ethereum/