Non-Fungible Tokens: From CryptoPunks to Market Collapse

Non-fungible tokens (NFTs) emerged as unique digital identifiers on blockchains, certifying ownership of digital art, collectibles, and virtual goods. The NFT market grew from experimental projects in 2017 to a USD 17 billion peak in 2021 before crashing by over 90% in 2022.

Events

CryptoKitties Launches and Clogs Ethereum Network

CryptoKitties, a blockchain game allowing users to breed and trade digital cats, launched and became the first mainstream NFT application. The game's popularity caused significant congestion on the Ethereum network, exposing scalability limitations and pioneering the ERC-721 NFT standard.

NBA Top Shot Launches on Flow Blockchain

Dapper Labs launched NBA Top Shot, an NFT marketplace for officially licensed basketball highlight clips. The platform became the fastest-growing NFT project in early 2021, generating over USD 700 million in sales and introducing NFTs to a mainstream sports audience.

CryptoPunks Intellectual Property Rights Transferred to Yuga Labs

Yuga Labs acquired the intellectual property rights to CryptoPunks and Meebits from Larva Labs. The acquisition consolidated ownership of the two most iconic NFT collections under Yuga Labs, which had created Bored Ape Yacht Club.

Igloo Inc. Announces Shutdown of Abstract, Its Consumer Ethereum L2

On October 6, 2026, Igloo Inc., parent of the Pudgy Penguins NFT collection, announced it will shut down Abstract, its consumer-focused Ethereum layer-2 network, on December 15, 2026, requiring users to withdraw assets before funds become inaccessible. The company cited tens of millions of dollars spent without achieving product-market fit and said resources would shift to Pudgy Penguins and its PENGU token; the closure came within a week of the Blast L2 shutdown, capping a rapid consolidation among consumer Ethereum layer-2 networks.