Creative Blockchain
🎮 Game Design & Interactive Media · competitive scoring

GLHF · x402

$0.01 — pay-to-post high scores. A hyper-competitive, global gaming leaderboard where every entry requires a micro-signed transaction. Players pay 0.01 USDC to submit a score, creating a financial barrier against sybil-bot spam and a real-value stakes environment for speedrunners and competitive gamers.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the competitive scoring 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 scoreboards from 'free storage' to 'pay-per-entry' transforms a vanity metric into a high-integrity proof of skill. x402 handles the 'anti-cheat' via the cost of entry; botting a leaderboard becomes financially unsustainable, while the facilitator ensures every world record is backed by an on-chain receipt.

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
$1.8B
the global competitive gaming market and cheat-detection industry expanding into verifiable play-to-earn structures.
SAM
$42M
competitive indie gaming circles, speedrunning communities, and high-stakes skill-based mobile gaming.
SOM
$450K
initial integration with three Base-native arcade games and casual competitive mobile apps.

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

See also

Adjacent entries.

competitive scoring
Immutable Scoreboards
Store game scores on Hedera testnet to prevent cheating and create permanent leaderboards.
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.