Ronin Network, the application-specific chain operated by Sky Mavis for Axie Infinity, will migrate to an Ethereum Layer 2 architecture through a hard fork scheduled for May, CryptoRank reported.

The transition marks the most consequential architectural change for the network since the March 2022 bridge exploit that drained roughly $625 million in ETH and USDC. That breach, attributed to North Korea-linked Lazarus Group actors who compromised five of nine validator keys, forced Sky Mavis to rebuild the chain's consensus and reimbursement procedures.

Why a Layer 2 shift now?

Two structural pressures pushed Sky Mavis toward the L2 design over the past year.

First, Ronin's standalone sidechain architecture, optimized for Axie Infinity's high transaction throughput, created friction with Ethereum's tooling stack. Smart contract developers launching on the chain had to maintain parallel codebases or wrap assets in non-standard formats.

Second, the validator set remained smaller than comparable EVM chains following the post-exploit security overhaul, limiting institutional adoption. The Layer 2 deployment will let Ronin inherit Ethereum's settlement layer while preserving throughput for game transactions.

What changes for users and developers?

The hard fork will require node operators to upgrade client software ahead of the scheduled activation block. Existing user balances will not be affected. RON, AXS and bridged USDC will continue to function on the new deployment.

Validators on the current proof-of-authority configuration will transition to roles on the L2 network, with Sky Mavis indicating that the proof-of-stake validator set will open to additional participants following the fork.

The Ronin Bridge itself, the site of the 2022 exploit, has been restructured over the past two years with additional signature requirements and circuit-breaker mechanisms.

How Sky Mavis rebuilt Ronin

The post-exploit path shaped the architecture now being replaced. Sky Mavis raised $150 million in late 2022 in a round led by Binance to reimburse users affected by the breach, restoring the majority of stolen funds through a combination of the firm's balance sheet, the raise and a community-approved token swap.

The chain reopened with a hardened bridge design and a more restricted validator set, then gradually expanded operator participation through 2023 as transaction volumes recovered toward pre-exploit levels.

What to watch

The May hard fork is the immediate operational milestone. The longer-term test for Ronin is whether the L2 architecture attracts application developers beyond Axie Infinity. Several smaller game studios launched builds on the chain through 2023, but transaction volume remains concentrated in Axie Infinity's NFT marketplace and land gameplay loops.

Institutional treasury operators will also evaluate whether the new L2 deployment supports the custody and compliance integrations required for enterprise deployment. Settlement-finality guarantees inherited from Ethereum will be the key metric counterparties weigh against the chain's prior security history.