Creative Blockchain
🎮 Game Design & Interactive Media · user-generated content

Player-Created Onchain Items

Allow players to mint and trade custom items on Sepolia smart contracts within games. Ownership is sealed inside a post-quantum QUIP vault.

base track · post-quantumQUIP vault deposit· post-quantum custody
Section · Onchain

The primitive.

full primer →

Each user-generated content deposit opens a QUIP — a post-quantum vault — and game designers see a vault ID, the current WOTS+ public key hash, and how much of the 256-key budget is left.

Why this primitiveLoading details…

Kernel
a deposit into a QUIP-enabled contract that pairs the user's classical wallet with a post-quantum commitment and returns a vault ID plus the first WOTS+ public key
Drives the UI as
a 'sealed in a QUIP' panel showing the vault ID, the current WOTS+ public key hash, and the remaining nonce budget
Appendix · Secrets

Required keys.

METAMASK_PRIVATE_KEY
Deploys the QUIP verifier to your host chain. Fund on Sepolia via the Google Cloud faucet.
open ↗
SEPOLIA_RPC_URL
Host-chain HTTPS RPC endpoint. Any Sepolia provider works.
open ↗
ETHERSCAN_API_KEY
Required for npx hardhat verify after deploy.
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 build prompt…
Open in Lovable ↗Sepolia Etherscan ↗
Appendix · Market

Market sizing.

TAM
…
SAM
…
SOM
…

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

See also

Adjacent entries.

quest tracking
Onchain Quest Ledger
Securely log player quest progress and achievements on Ethereum Sepolia to prove in-game milestones. Ownership is sealed inside a post-quantum QUIP vault.
interactive puzzles
Onchain Puzzle Locks
Design puzzles whose solutions must be proven onchain via Sepolia smart contracts to unlock game content. Ownership is sealed inside a post-quantum QUIP vault.
storytelling
Onchain Narrative Branches
Record player story choices on Sepolia to create transparent, shared branching narratives. Ownership is sealed inside a post-quantum QUIP vault.
match coordination
Onchain Multiplayer Matchmaking
Use Sepolia to transparently pair players based on verified criteria ensuring fairness. Ownership is sealed inside a post-quantum QUIP vault.