A “no‑KYC” casino focuses on removing document verification at sign-up so you can play without submitting identity files. A “DeFi” casino typically refers to on‑chain or wallet‑native gambling where transactions and sometimes game logic happen through smart contracts.
No‑KYC casinos are often custodial: you deposit crypto to a casino balance, play games, and withdraw. DeFi casinos often connect directly to your wallet and may settle bets on-chain.
Privacy differences: no‑KYC reduces document collection; DeFi reduces account-level identity requirements but can increase transaction traceability because on‑chain activity is public.

User experience: no‑KYC sites can feel familiar and fast; DeFi sites may require wallet management and gas fees.
Which is more private? It depends. No‑KYC reduces document sharing, while DeFi can expose activity publicly on-chain. Choose based on your privacy model.
Do DeFi casinos have KYC? Many do not require documents, but access can vary by jurisdiction and platform rules.
What is the biggest risk? For DeFi, smart‑contract risk. For custodial no‑KYC casinos, counterparty risk and withdrawal policy risk.