🎮 Game Design & Interactive Media · competitive ranking

GLHF · x402

A hyper-competitive leaderboard where every rank movement is a financial stake. Players sign to authorize 0.01 USDC to 'challenge' a slot or update their high score. It turns passive ranking into a high-velocity, real-time betting floor where skill and hardware-signing speed determine the alpha.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the competitive ranking 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 gas-free (subsidized) to x402-native (micromonetized), we filter for intent and create a 'sink' for surplus USDC. Each score update becomes a low-friction micro-transaction, transforming the scoreboard into a viable revenue stream for game devs and a high-stakes environment for players.

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
$180B
Global video game software market and competitive social media platforms.
SAM
$4.2B
Competitive mobile gaming and casual e-sports tournament fees.
SOM
$85M
On-chain gaming ecosystems on Hedera utilizing HTS transfer for friction-free skill-based wagering.

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

See also

Adjacent entries.