The Masterless Chain Goes Home: Ronin's Move to Ethereum, Explained

A ronin, in Japanese history, was a samurai without a master. It is a fitting name for a blockchain that spent five years on its own, outside Ethereum's protection. On 12 May 2026, at block 55,577,490, that chapter ended. Ronin, the network built for Axie Infinity, hard-forked from an independent sidechain into a full Ethereum layer 2 running on Optimism's OP Stack.

For players, the switch was meant to be almost invisible: same wallets, same items, same games. For the industry, it was a loud signal: even the most successful standalone gaming chain decided it was better off as part of Ethereum than alone.

Why Ronin existed in the first place

To understand the move, rewind to 2020. Sky Mavis, the studio behind Axie Infinity, had a hit on its hands and a problem underneath it. Every breed, battle reward or marketplace trade in Axie was a blockchain transaction, and on Ethereum each one could cost more than the creature involved. Ronin was announced in 2020 and launched in 2021 as Sky Mavis's own chain: fast, cheap, and tuned for one game.

It worked spectacularly, at first. During Axie's 2021-2022 peak, Ronin handled billions of dollars in NFT trading volume. But being a sidechain meant Ronin secured itself, with a small set of validators, rather than borrowing Ethereum's security. In March 2022, attackers later attributed to North Korea's Lazarus Group compromised enough of those validator keys to drain the Ronin bridge of about $625 million, one of the largest thefts in crypto history.

The comeback nobody predicted

After the hack, many expected Ronin to fade with Axie. Instead it rebuilt. In 2023 it moved from a permissioned Proof of Authority model to Delegated Proof of Stake, where token holders back the validators they trust. More than 170 million RON, about 60% of the circulating supply at the time, was staked by the end of that year.

The real turning point was a farming game. Pixels, a cheerful pixel-art farming and social game, announced its move to Ronin in September 2023 and went live there on 31 October 2023. Daily users on the network jumped, and Ronin suddenly had a second hit that had nothing to do with Axie. Over that year, more than 1.2 million people created a Ronin wallet address, and over ten studios signed on, from Apeiron to ZOIDS WILD ARENA.

That success is part of why the 2026 decision is so interesting. Ronin wasn't moving because it had failed. It was moving because staying independent had become expensive, and because the security model that failed in 2022 still haunted its reputation.

What actually happened on 12 May

Ronin announced the plan on 22 April 2026, in a post titled "Ronin is coming home to Ethereum". The core changes:

• New architecture. Ronin now runs on the OP Stack, the same open-source layer-2 kit used by networks such as Optimism, Celo and Fraxtal. Transactions settle on Ethereum, and EigenDA handles data availability, the job of storing transaction data so anyone can check it.
• Planned downtime. The team warned of roughly 10 hours of "hibernation" during the switch, with games possibly unavailable. Players did not need to do anything with their wallets or items.
• Old nodes cut off. Any node running outdated software stopped following the chain once the fork activated.
• Partners. Optimism, Conduit, Boundless and EigenLayer supported the migration.

The token side: inflation down, treasury up

Ronin used the migration to rewrite its economics, and this is where the change matters most for the network's long-term health.

• Inflation of the RON token falls from over 20% a year to under 1%. High inflation had been paying validators and stakers, but also steadily diluting everyone else.
• Marketplace fees sent to the Ronin treasury rise 2.5x, from 0.5% to 1.25% of sales on the Ronin Marketplace.
• 90 million RON previously set aside for staking rewards now feeds the treasury instead, which also keeps net sequencer profits (the sequencer is the system that orders transactions on a layer 2).
• A new scheme called Proof of Distribution rewards game studios automatically, based on a "Builder Score" that weighs things like gas spent, NFT volume and DEX trading volume. Projects have to register to earn.

The network also introduced new "apptokens" called bRON and bAXS.

For context on the market around the move: as of 22 Apr 2026, RON traded near $0.097, roughly 98% below its March 2024 peak of $4.45. Axie's AXS token was down more than 99% from its November 2021 high. (Token prices are volatile; these are dated snapshots, not a forecast.)

Why everyone is watching

Ronin's move follows a pattern. In 2025 and 2026, gaming chains faced the same squeeze: fewer players, lower token prices, and the fixed cost of running an entire network. Immutable folded its older chain into a single network. Several crypto games shut down, including Forgotten Runiverse on Ronin itself in 2026.

It helps to be clear about what the label means. A sidechain is a separate blockchain that runs next to Ethereum and connects to it through a bridge, but it is only as secure as its own validators. A layer 2 posts its transaction data and proofs back to Ethereum, so if something goes wrong, the record on Ethereum is the final word. In plain gamer terms: a sidechain is a private server with its own admins; a layer 2 is a shard that still answers to the main server.

Becoming a layer 2 is a way to cut those costs while keeping control. Ronin still decides fees, rewards and which games it courts, but Ethereum now does the heavy lifting on security. After a hack that cost hundreds of millions, that trade-off is easy to understand.

By the numbers

• 2021: Ronin launches as Axie Infinity's sidechain
• ~$625 million: stolen in the March 2022 bridge hack
• 31 Oct 2023: Pixels goes live on Ronin
• 1.2 million+: Ronin wallet addresses created during 2023
• 55,577,490: the block where Ronin became a layer 2 (12 May 2026)
• 20%+ to under 1%: RON's yearly inflation before and after
• 0.5% to 1.25%: marketplace fee share going to the treasury

WGC's take, and what to watch

The masterless chain found a master again, and that is probably the healthiest outcome. For players, the promise is simple: the games, wallets and items stay where they were, but the network beneath them is now backed by Ethereum's security rather than a small group of validators.

What to watch: whether the new fee and reward model keeps studios building on Ronin without heavy token incentives; whether Pixels and Axie hold their players; and whether other independent gaming chains follow Ronin home. For the other big consolidation story, read our explainer on Immutable's chain merger.