Blast, an Ethereum layer-2 network that once held more than $2.2 billion in user assets, will shut down after its total value locked collapsed 98% from a June 2024 peak, the project said Friday.

In an X post announcing the closure, the Blast team said the network's economics no longer justify continued operation.

"Unfortunately, the economics of operating the chain no longer make sense," the team wrote.

"The ongoing costs of maintaining Blast exceed the revenue generated by the L2, and we do not see a credible path to making the chain economically sustainable."

The network's native token, BLAST, fell about 19% on the news and trades roughly 98% below its launch price.

What does the closure mean for users?

Blast gave users until Oct. 26 to withdraw assets to Ethereum through its official interface.

After that date, withdrawals will require interaction directly with the network's bridge contracts, a more technical process that raises execution risk for less experienced holders.

That deadline places the burden of asset recovery squarely on users, effectively converting Blast from an active layer-2 into a winding-down bridge rather than a functioning chain.

How did Blast arrive at this point?

Blast launched in 2024 and drew more than $1.1 billion in deposits before going live, fueled in part by expectations of a token airdrop, CoinDesk reported at the time.

Total value locked peaked above $2.2 billion in June 2024, according to DeFiLlama.

By the time of the closure announcement, TVL had fallen to roughly $32 million.

Network revenue from transaction fees totaled $1,793 last month, down from a peak of approximately $3.5 million in June 2024, DeFiLlama data shows.

The collapse traces a familiar arc in crypto: a hype-driven liquidity spike that peaks around an airdrop event, then bleeds out as incentives expire and users rotate to newer venues.

Why is the sector consolidating?

Blast's exit is the highest-profile casualty yet of a structural squeeze hitting smaller layer-2s.

Chains carry fixed costs for development, infrastructure and security that persist even after user activity fades, and a recent wave of exploits, amplified by AI-assisted vulnerability discovery, has pushed that spending floor higher.

Large consumer platforms have compounded the pressure by launching their own Ethereum-based networks.

Coinbase operates Base; Robinhood has built a competing layer-2.

Both absorb transaction flow and developer mindshare that would otherwise accrue to independent rollups.

That leaves smaller chains fighting for developers, users and transaction fees in a market where activity has migrated to platforms with built-in distribution and aggressive fee subsidy programs.

What changes after Oct. 26?

After the user-facing interface closes, anyone still holding bridged assets can move funds only through direct interaction with the on-chain contracts Blast used to connect to Ethereum mainnet.

The team has not announced a date for those contracts to be deprecated.

For treasury desks and institutional holders, that gap between the user-interface cutoff and a contract-level sunset introduces an operational tail that persists past Oct. 26.

The wider implication: as fee capture concentrates among a few consumer-facing chains, marginal layer-2s will keep folding unless they secure captive distribution or build a fee-generating application stack large enough to keep revenue above the cost floor.