10 — NFTs, GameFi, RWA, DePIN

Applications beyond pure DeFi. NFTs (art, identity, gaming), GameFi/play-to-earn, RWA (tokenized real-world assets), DePIN (decentralized physical infrastructure).

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1. NFTs — Non-Fungible Tokens

Standards

History

Categories

Marketplaces

Royalty wars (2022-2024)

NFT royalties enforced only at the marketplace level (not chain-level). Blur 0% royalty (2022) sparked a race-to-bottom. OpenSea Operator Filter controversy. By 2024, royalties were largely optional/marginal — many collections moved to on-chain enforcement via transfer restrictions.

Stats

NFT market (~May/2026):

• Monthly volume: ~US\( 200-400M (way down from US\) 5B+/month in 2022).
• Active collections: thousands.
• Total unique buyers: cumulative ~7M.

Cooling post-2022 but core community + utility-focused projects persist.

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2. CryptoPunks — a historical case

Larva Labs (Matt Hall + John Watkinson), Jun/2017.

• 10,000 unique punks (algorithmic).
• Originally "free claim" — stock was left over for months.
• Pioneered the "10k generative collection" template.
• Aliens, apes, zombies (rare attributes).
• Sale records: CryptoPunk #5822 (alien) US$ 23.7M (Feb/2022).
• Acquired by Yuga Labs in Mar/2022 — now alongside BAYC, Meebits, Otherdeed.

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3. BAYC (Bored Ape Yacht Club)

Yuga Labs, Apr/2021.

• 10,000 apes.
• Floor: 75 ETH peak (~US$ 400k) Apr/2022; ~6-12 ETH in 2026.
• Sold to celebs (Madonna, Snoop, Kevin Hart, Steph Curry, etc.).
• Mutant Apes, Bored Ape Kennel, Otherdeed land sales.
• ApeChain (Arbitrum Orbit L3) launched 2024.
• APE token (governance).

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4. Generative art

Art Blocks

Erick Calderon (Snowfro) 2020. Curated platform: artists submit code; a collector mint triggers a seed → unique generation.

• Curated tier (highest): Fidenza (Tyler Hobbs), Ringers (Dmitri Cherniak), Chromie Squiggles (Snowfro), Sukyaba.
• Playground, Factory: less curated.
• Engine (now Art Blocks Studio): white-label platform.

Records: Ringers US$ 6.9M (Christie's 2023).

fxhash, Hic et Nunc (defunct), objkt

Tezos-based art platforms (lower fees + clean energy narrative).

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5. ENS (Ethereum Name Service)

Nick Johnson 2017. Domain names + identity layer for Ethereum.

• .eth names registered as ERC-721.
• Resolution: address ↔ name; metadata, content hash, social links.
• Free subdomains.
• Premium auctions (short names).
• ~3M ENS names registered (cumulative).

vitalik.eth, brantly.eth and on-chain identities

ENS became the default identity on Ethereum. Twitter/X integration via verified badges.

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6. GameFi / Play-to-Earn

Axie Infinity

Sky Mavis (Vietnam) 2018. Pokemon-like creatures, breeding, battles. AXS + SLP tokens. Ronin sidechain.

Peak 2021-2022:

• Pacific countries (Philippines) — players earning livable wages via P2E.
• Sky Mavis valuation US$ 3B.

Decline:

• SLP inflation → economy collapse.
• Ronin Bridge hack (Mar/2022, US$ 625M) — Lazarus, N. Korea.
• Player count dropped 90%.
• Pivot to Axie: Origins (free-to-play).

Other GameFi (mostly struggled)

• Gods Unchained: TCG, Immutable X.
• Illuvium: open-world RPG, Aurora L2.
• Stepn: move-to-earn (run + earn GST). Peak 2022, crash.
• Bigtime: ARPG.
• DeFi Kingdoms: DeFi gamified, Harmony→Avalanche.

Modern (2024-2026 traction)

• Pixels (farming sim, Ronin).
• Off The Grid (Gunzilla, AAA shooter).
• Star Atlas (Solana, MMO).
• Parallel (TCG, Base).
• Telegram games: Notcoin, Hamster Kombat — massive user numbers via TON. Tap-to-earn of questionable depth.

Web3 gaming critique

• "Sustainable economics" elusive.
• "Game first, crypto invisible" thesis (Pixels, Off The Grid) — better than crypto-first.
• Steam bans Web3 games; Epic allows them.
• AAA blockchain games still mostly vapor (Off The Grid is an exception).

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7. Sorare

Fantasy football (soccer). Player cards as NFTs. Real-life performance affects gameplay. Licensed with leagues (UEFA, NBA, MLB). US$ 700M Series B 2021. Notable relevance.

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8. Real-World Assets (RWA)

Tokenization of off-chain assets. Hottest DeFi narrative 2024-2026.

Categories

BlackRock BUIDL

BlackRock USD Institutional Digital Liquidity Fund. Launched Mar/2024 on Ethereum via Securitize.

• US Treasury + repo collateral.
• Yield distributed daily.
• US$ 500M+ AUM in 2025; growing.
• Catalyst: institutional adoption.

Ondo Finance (ONDO)

• USDY: yield-bearing dollar (retail-permissioned).
• OUSG: institutional Treasury fund.
• USDtb: stablecoin backed by BUIDL.
• ONDO token.

MakerDAO/Sky RWA

DAI/USDS collateral mix includes:

• US Treasuries via BlockTower, Monetalis.
• Private credit pools.
• Real-world bank loans (Huntingdon Valley Bank pilot).

~50% of DAI/USDS collateral is RWA.

Centrifuge

Specialized in tokenizing trade finance, real estate, private credit. Tinlake protocol. Integrated with MakerDAO as a collateral provider.

TVL trend

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9. DePIN (Decentralized Physical Infrastructure Networks)

Networks reward tokens to participants who provide physical resources.

Helium (HNT)

LongFi network. Hotspots (LoRaWAN) deployed by individuals → coverage rewards in HNT.

• Peak 2021-2022: ~1M hotspots globally.
• IoT use case lagged → pivot to Helium Mobile (5G + Wi-Fi roaming).
• Migrated from its own L1 to Solana (2023).

Render Network (RENDER)

OTOY background. GPU rendering marketplace. Users with idle GPUs accept rendering jobs; pay in RENDER. Migrated Ethereum → Solana 2023.

Akash Network (AKT)

Decentralized cloud computing — bid on container deployments. GPU offering 2024+. Cosmos SDK chain.

io.net (IO)

Distributed GPU compute, Solana-based. Pivot from gaming to AI training.

Hivemapper (HONEY)

Dashcam-based street-level mapping. Drivers earn HONEY for unique imagery uploaded.

Bittensor (TAO)

Decentralized ML model marketplace. Subnets train/serve models, miners earn TAO. Marketcap ~US$ 4B in 2026.

Filecoin / Arweave

Storage DePIN (covered in 06-l1-alt.md).

DIMO

Vehicle data network. Drivers connect cars; earn DIMO tokens for data shared.

Streamr

Real-time data streaming network.

Mawari, GEODNET, WeatherXM

Various niche networks (XR streaming, GNSS positioning, weather).

DePIN trend

US$ 30B+ combined marketcap in 2026. Narrative: blockchain incentives align physical capex with token rewards.

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10. Identity / Soulbound / Reputation

Worldcoin

Sam Altman (OpenAI) + Alex Blania, 2020-2023.

• Orb: hardware that scans the iris → unique hash → "World ID".
• WLD token airdrops to verified humans.
• Controversial: privacy concerns; regulatory pushback (Spain, Portugal, Kenya banned operations).
• Pivoted 2024-2025 toward an AI agent verification thesis.

Gitcoin Passport

Sybil-resistance via stamps (Twitter, BrightID, Proof of Humanity, etc.). Used by quadratic funding.

Proof of Humanity

Manual verification (video + vouches). Smaller scale.

ENS, Lens, Farcaster

Social/identity tokens. Farcaster Frames (interactive embeds in casts) explosive in 2024.

Soulbound Tokens (SBTs)

Vitalik proposal (2022 paper). Non-transferable tokens for credentials, attestations, history. Limited mainstream adoption.

Verifiable Credentials (W3C)

Cross-chain standard. Used in healthcare pilots, education credentials.

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11. SocialFi

Web3-native social apps.

Lens Protocol (Aave team)

NFT-based profiles, posts as NFTs, on-chain social graph. Polygon.

Farcaster

Dan Romero (ex-Coinbase) 2022. Sufficient decentralization. Frames (2024) = interactive embeds → mini-apps in casts. Native Optimism L2 (their own L2 launching).

Friend.tech (2023, defunct 2024)

Bonding curve "shares" of personalities. Briefly the Base TVL leader; crashed.

CyberConnect, Tomo, Hey

Various lens/Farcaster clients.

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12. Stats and trends (May/2026)

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13. Specific risks

NFTs

• Royalty enforcement weak.
• IP rights: holding an NFT ≠ copyright transfer (commonly misunderstood).
• Wash trading: artificial volume to game rewards (Blur era).
• Phishing: signature-based wallet drainers; "blind signing" risk.
• OFAC sanctioned wallets holding traceable.

GameFi

• Ponzi-economics: P2E rewards from new player buy-in eventually run out.
• Bot farming dilutes legitimate players.
• Liquidity flight when the narrative shifts.

RWA

• Custodial counterparty risk (BUIDL = BlackRock; if BlackRock fails, the token is worthless).
• Regulatory: securities laws apply. Most RWA tokens are permissioned (KYC).
• Off-chain enforcement dependency.

DePIN

• Hardware capex for participants.
• Token incentive sustainability post-bootstrap.
• Quality control decentralized (Helium IoT lagged).

Identity

• Privacy: World ID iris scanning controversial.
• Centralization: SBT issuer trusted.

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14. Cross-reference

• Technical token standards: 08-smart-contracts.md §ERC-721/1155.
• Tokenomics + governance: 12-tokenomics.md.
• RWA regulation + securities laws: 13-regulation.md.
• Hacks (Ronin, OpenSea phishing): 14-incidents.md.
• Bitcoin Ordinals: 04-l1-bitcoin.md §Ordinals.
• Solana NFTs (Metaplex): 06-l1-alt.md §Solana.