NFT & Blockchain Gaming
NFTs (Non-Fungible Tokens) represent unique digital assets on-chain. ERC-721 is the standard, ERC-1155 supports batch operations and mixed fungible/non-fungible tokens used in gaming.
40 min•By Priygop Team•Last updated: Feb 2026
NFT Standards
- ERC-721 — Standard NFT. Each token ID is unique. ownerOf(tokenId), transferFrom. Used by CryptoPunks, Bored Apes
- ERC-1155 — Multi-token standard. One contract handles fungible (gold coins) and non-fungible (unique sword) tokens. More gas-efficient for games
- Metadata — Stored off-chain (IPFS/Arweave). tokenURI() returns JSON with name, description, image, attributes. On-chain metadata fully decentralized but expensive
- Royalties — ERC-2981: creator earns % on secondary sales. Not universally enforced by marketplaces (OpenSea controversy)
- Lazy minting — NFT not minted until first purchase. Marketplace covers gas until sold. Lower barrier for creators
- Soulbound tokens (SBT) — Non-transferable NFTs for credentials, receipts, reputation. ERC-5192
- On-chain gaming — Game logic in smart contracts. Random: Chainlink VRF for provably fair randomness. Challenge: gas costs per action