🎮 Game Design & Interactive Media · collaborative narrative

Inkwell · x402

A headless writer's room where every plot twist costs 0.01 USDC. Writers pay to append a sentence to the world-state; readers pay to branch the narrative. The facilitator settles the 'Editor's Fee' instantly, turning collaborative lore into a real-time micro-economy where the most compelling story arcs generate the highest velocity of tx hashes.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the collaborative narrative 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 primitiveBy shifting from 'authorship recording' to 'metered contribution,' we solve the spam problem in collaborative writing. The cost to participate acts as a quality filter and a direct revenue stream for the story's treasury.

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…
Appendix · Market

Market sizing.

TAM
$22B
The global interactive media and collaborative entertainment sector.
SAM
$850M
The digital fiction and web-novel market transitioning to micro-transactional models.
SOM
$12M
On-chain RPG communities and 'fictional world' DAOs on Hedera using x402 for lore-governance.

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

See also

Adjacent entries.