Top 10 Layer 2 Blockchains for Web3 Game Developers
Between mid-2025 and early 2026, two blockchain networks built specifically for Web3 gaming shut their operations. Kroma officially sunset its Layer 2 on June 30, 2025, migrating its $KRO token to Ethereum L1 in preparation for a forthcoming Kroma Protocol.

Months later, Myria terminated its own L2 operations and set an asset bridging deadline of April 27, 2026. For the game studios, guild managers, and digital asset holders who had organized their economic routines around these chains, the shutdowns were not abstract protocol events — they were forced relocations of entire communities, with in-game inventories, governance tokens, and player wallets caught mid-transition.
The pattern matters because it reframes how the remaining Layer 2 ecosystems should be evaluated. A gaming chain is not merely a technical substrate for cheap transactions; it is civic infrastructure whose continuity determines whether a player's accumulated digital identity survives the next quarter. The following is a survey of the L2 networks currently operating for Web3 game developers, assessed not on whitepaper promises but on what is actually deployed, maintained, and bearing real user load.
The Evolution of Gaming-Specific Ethereum Scaling
Ethereum's mainnet has never been a hospitable environment for games. Block confirmations measured in seconds still carry gas fees that price out high-frequency interactions — combat ticks, inventory transfers, social chat, market settlements. Early Web3 games experimented with sidechains: independent networks pegged to Ethereum but running their own consensus. Ronin began life as one of these sidechains, built by Sky Mavis to support Axie Infinity at a scale Ethereum itself could not handle.
The current generation of gaming L2s is different in kind. They inherit Ethereum's security model through rollup technology — either bundling transactions into validity proofs (ZK-rollups) or posting compressed transaction data back to L1 and relying on a challenge period (optimistic rollups). The shift from sidechain to rollup is not merely technical; it changes the governance posture. A sidechain's failure mode is operator discretion, and Ronin's 2022 bridge exploit — which drained roughly $625 million — demonstrated how catastrophic that can be. A rollup's failure mode is smart-contract risk, which is bounded and auditable but introduces its own coordination problems.
The migration of Ronin itself to an OP Stack-based Ethereum Layer 2, with sub-second finality and transaction fees under $0.01, signals where the industry has settled. Sidechains are out. Rollups are in. The question now is which rollups, and for what kind of game.
High-Performance Gaming Hubs
Three L2s have established themselves as the default destinations for mid-to-large Web3 game studios.
Immutable zkEVM remains the most cited name in gaming-specific scaling. Built as a specialized Ethereum L2 using zero-knowledge validity proofs, it offers gas-free transactions for players and instant trade confirmations — the combination that makes secondary-market trading of in-game assets feel like a normal retail experience rather than a crypto ritual. For card games, strategy titles, and any product where item ownership and trading are core mechanics, the cost profile is the product. Immutable's Passport system abstracts wallet creation entirely, removing the onboarding friction that has historically gated mainstream audiences out of Web3 titles.
Ronin, now operating as an OP Stack L2, has retained its captive audience from the Axie Infinity era while onboarding new titles. The chain reports sub-second finality and fees consistently under $0.01. Its transition from a permissioned sidechain to a rollup is the most-watched governance experiment in gaming infrastructure: if a network with billions of dollars in historical player activity can migrate its security assumptions without losing users, it sets a template for the rest of the industry. The Ronin ecosystem now includes not just games but a marketplace, a decentralized exchange, and a validator set that has gradually expanded beyond Sky Mavis's direct control.
opBNB approaches the same problem from the BNB Chain ecosystem rather than Ethereum's. Built on the OP Stack, it claims throughput exceeding 4,000 transactions per second and average transfer fees as low as $0.001. The architecture is optimized for raw volume — social games, casual titles, and any product where the user does not need to know they are on a blockchain. Its strength is distribution: opBNB sits behind the Binance wallet infrastructure, giving studios access to a user base that already holds crypto and understands token mechanics without additional onboarding.
The L2s that survive will be the ones whose economics do not require their users to think about gas. Visibility is failure.
Modular Data Availability and the Cost Floor
A second tier of L2s distinguishes itself through modular architecture: separating execution from data availability to push transaction costs closer to zero.
Base, incubated by Coinbase and built on the OP Stack, is the most institutionally backed L2 in the gaming conversation. It has reduced block times to 200 milliseconds using preconfinements, with sub-cent transaction fees. While not gaming-exclusive, its consumer-facing wallet stack and the absence of native token friction make it a common choice for studios targeting the U.S. market. Base's integration with Coinbase's retail on-ramp means that fiat-to-asset conversion is a single step — a practical advantage that technical comparisons routinely overlook but that studio business-development teams cite as a decisive factor.
Arbitrum Nova is Arbitrum's dedicated high-throughput chain, using AnyTrust data availability technology — a variant that posts data to a committee rather than to Ethereum L1 directly, trading a small amount of security for substantially lower cost. It is explicitly positioned for high-frequency gaming and social dapps, where the cost of posting every action to L1 would be prohibitive. Nova inherits Arbitrum's tooling and developer ecosystem, which means that studios already building on Arbitrum One can port contracts with minimal friction.
Mantle Network layers Mantle DA and EigenDA beneath an OP Stack execution environment, achieving modular data availability that compresses transaction fees further than monolithic rollups. Ancient8 takes a similar approach, leveraging Celestia for data availability and positioning itself as a gaming-focused L2 within the OP Stack family. Both represent a bet that the future of gaming infrastructure is not a single chain doing everything, but a composable stack where data availability, execution, and settlement are independently optimized.
These chains are not competing on raw performance as much as on cost engineering. The difference between $0.01 and $0.001 per transaction is the difference between a game that monetizes through play and one that subsidizes play through treasury emissions.
| Network | Architecture | Data Availability | Typical Fee | Positioning |
|---|---|---|---|---|
| Base | OP Stack rollup | Ethereum L1 (with preconfinement) | Sub-cent | Consumer-facing, institutionally backed |
| Arbitrum Nova | AnyTrust rollup | Data availability committee | Ultra-low | High-frequency gaming, social dapps |
| Mantle | OP Stack rollup | Mantle DA / EigenDA | Low | Modular, cost-optimized |
| Ancient8 | OP Stack rollup | Celestia | Low | Gaming-focused, modular |
The Fully On-Chain Frontier
A smaller, more ideologically committed cluster of L2s is building for games that put every mechanic on-chain.
Starknet uses STARK-based validity proofs and the Cairo programming language, supporting fully on-chain games like Influence, where the entire game state — terrain, economy, NPC behavior — lives in smart contracts. The trade-off is developer ergonomics: Cairo is not Solidity, and the ecosystem is correspondingly thinner. But the games it hosts represent a research bet on what blockchain-native game design looks like when nothing is off-chain. The Cairo language forces a different programming model, one where storage and computation are tightly coupled to proof generation — a constraint that some developers find creatively generative rather than limiting.
Redstone, built by Lattice on the OP Stack, is designed specifically for fully on-chain games and autonomous worlds running the MUD framework. Average transaction costs sit around $0.001026 — effectively free for the player — and the mainnet launched on May 1, 2024. Redstone's positioning is narrow: if a studio is building a persistent world where every entity is a smart contract, Redstone is the chain that has accepted the consequences of that choice. The MUD framework provides an entity-component-system architecture that maps surprisingly well to game engine patterns, reducing the cognitive distance between traditional game development and on-chain state management.
These are not mass-market plays. They are infrastructure for the small number of teams that believe the future of game servers is cryptographic — and that interoperability between worlds matters more than graphical fidelity.
Beyond L2: The Layer 3 Question
The most recent structural shift is the emergence of Layer 3 ecosystems: application-specific chains built on top of existing L2s, inheriting their security while adding a custom execution layer for a single game or franchise.
Xai, built on Arbitrum Orbit, reports a transaction capacity of 10,000 TPS and is positioned around a specific game ecosystem rather than as a general-purpose chain. B3, built on Base, has accumulated over 80 games and more than 6 million users as an L3 chain. The economics of L3s differ from L2s: they are cheaper to launch because they do not run their own settlement layer, but they are also more dependent on the L2 beneath them for liveness.
The L3 model raises governance questions that L2s have only begun to answer. If a Layer 3 chain's viability is contingent on an L2's continued operation, then the L2's governance decisions become existential for every L3 built atop it. This is the kind of dependency that recent network sunsets have made newly visible. It is also the kind of dependency that has pushed some L3 projects toward unconventional user acquisition — including the celebrity-driven visibility that pop and music news outlets routinely track as public figures extend their reach into digital economies. Whether that attention converts into durable governance participation remains an open question.
The Layer 3 model also introduces a new category of risk: sequencer dependency. If the parent L2's sequencer goes down or changes its fee structure, every L3 built on top absorbs that shock immediately. For game studios evaluating an L3 deployment, the due diligence now extends two layers down — not just the L3's own economics, but the L2's sequencer uptime, its governance token distribution, and its treasury runway.
Lessons from the Sunsets
The Kroma and Myria shutdowns are the most consequential data points in the current L2 landscape, precisely because they were not predicted by their communities.
Kroma's June 30, 2025 closure came after the team concluded that the L2's economics were not sustainable under current fee regimes, and it is preparing a Kroma Protocol on Ethereum L1 instead. Myria's decision to terminate its L2 and migrate to Ethereum L1 — with the April 27, 2026 bridging deadline — followed a similar logic: the cost of operating a rollup exceeds the revenue it generates when transaction volume is low. The gap between these two events — nearly ten months — underscores that these were not coordinated failures but independent conclusions arrived at by separate teams confronting the same structural pressure.
In both cases, the core problem was not technical. The rollups functioned. Blocks were produced, transactions were finalized, bridges held. The failure was economic: insufficient transaction volume to sustain the operational costs of running dedicated sequencer infrastructure, maintaining bridge contracts, and funding ongoing development. For a gaming L2, the breakeven point is high — the network needs not just users but active, transacting users whose on-chain activity generates enough fee revenue (or whose presence justifies enough treasury expenditure) to cover the fixed costs of rollup operation.
These are not failures in the engineering sense. They failed in the governance sense: they could not retain enough activity to justify their existence. For developers evaluating L2 partners in 2026, the implication is that technical specifications matter less than the social and economic signals of an ecosystem's health — active developers, sustained transaction volume, a treasury large enough to weather a downturn, and a community organized enough to resist exit when the next bear market arrives.
A chain's roadmap is a claim. Its runway is a fact.
The Sustainability Question
The Layer 2 landscape for Web3 gaming in 2026 looks more mature than it did two years ago: cheaper transactions, better developer tools, and a clearer separation between chains optimized for trading, for casual play, and for fully on-chain experimentation. The unsolved problem is governance durability — whether these networks can maintain the operational continuity that players and studios require over multi-year horizons.
The technical contest is largely settled. Most major gaming L2s now offer functionally equivalent costs, with fees measured in fractions of a cent and finality measured in seconds. What remains is a contest of organizational stability: which chains have built the institutional, financial, and community scaffolding to survive the next downturn, the next governance dispute, the next regulatory shock.
The question is not which L2 is fastest or cheapest. The question is which ones will still be processing transactions when their users' grandchildren open their first wallet — and which ones will be added to the list of chains that shut their doors without warning.