Creative Blockchain
🎮 Game Design & Interactive Media · 3D object preservation

Relic · x402

A high-fidelity spatial asset vault where every inspection, download, or integration is metered. Users pay 0.01 USDC to unlock an encrypted 3D artifact from IPFS. Developers pay per-call to pull assets into their own XR scenes. Payment serves as the digital preservation tax, funding the pinning of history while providing instant provenance via Base transaction hashes.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the 3D object preservation engine is metered with x402: 0.01 HBAR or 0.01 HTS USDC per call, paid from the embedded wallet, so game designers — or the agents working for them — pay per query and get a HashScan receipt every time.

Why this primitiveMoving from 'free archive' to 'micropayment gateway' creates a sustainable preservation loop. By charging per-access, the library acts as a decentralized API for game engines, where the cost of 0.01 USDC ensures high-quality mesh delivery without heavy subscription overhead.

Kernel
an x402 v2 paywall metering access at 0.01 HBAR or 0.01 HTS USDC (token 0.0.429274) per call, paid from the embedded wallet through the relay and verified by a self-hosted facilitator against the Hedera mirror node
Drives the UI as
a 'pay 0.01 HBAR or USDC to unlock' button with a live flow log and a HashScan link for every settlement
Appendix · Secrets

Required keys.

HEDERA_OPERATOR_ID
Hedera testnet account id (0.0.xxxxxx). Create and fund it free.
open ↗
HEDERA_OPERATOR_KEY
ECDSA private key for that account, from the Hedera portal dashboard.
open ↗
REOWN_PROJECT_ID
Free project id powering the HashPack pairing modal.
open ↗
HEDERA_RPC_URL
Optional. JSON-RPC relay, defaults to the public Hashio endpoint.
open ↗
PINATA_JWT
Pins images / JSON / manifests to IPFS.
open ↗

Add these in your Lovable project under Settings → Secrets before pasting the prompt below.

Appendix · Mega-prompt

The build prompt.

Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →

Loading the mega-prompt…
Hedera testnet HashScan ↗
Appendix · Market

Market sizing.

TAM
$13.4B
The global 3D modeling and digital asset management market across AEC, gaming, and heritage.
SAM
$450M
The growing market for XR-ready game assets, digital twins, and virtual museum plugins.
SOM
$12M
Specialized preservationist collectives and indie XR devs building 'historical' levels on Hedera.

Indicative figures for hackathon pitches — refine with your own research before raising.

See also

Adjacent entries.

3D object preservation
XR Artifact Library
Archive and share 3D XR artifacts via IPFS, ensuring permanent access to virtual museum pieces.
quest tracking
Milestone · x402
Turn every quest step into a verifiable micro-transaction. Players pay $0.01 USDC to sign 'Proof-of-Completion' for individual milestones, instantly updating a global leaderboard. Developers monetize gameplay depth through high-frequency, low-friction state updates rather than binary loot boxes. Fractionalize game progress: pay-per-checkpoint, pay-per-achievement, and pay-to-audit.
item distribution
LootCrack · x402
A high-frequency loot-cycling engine where players pay 0.01 USDC to 'crack' regional drop-tables. Instead of subscription-based RNG, every item acquisition is a discrete micropayment transaction. Use x402 to meter high-value item reveals, ensuring that rare 'Legendary' pulls generate immediate protocol revenue while providing players with a cryptographic receipt of authenticity on Hedera.
community trust
Proof of Honor · x402
$0.01 — pay-per-vouch. A high-integrity matchmaking layer where players pay to submit peer reviews and developers pay to query the 'Karma' API. By attaching a micro-cost to reputation, you eliminate sybil attacks and bot-spam, ensuring that only skin-in-the-game sentiment defines a player's standing. No free reports, no fake fluff.