UNI is the governance token of Uniswap, one of the largest decentralised exchanges, and a number of crypto casinos accept it directly as a deposit option. Where support exists, it is generally over Ethereum (ERC20) as the native chain, with BNB Smart Chain (BEP20) offered by some operators as a cheaper alternative for the wrapped version.
The same network-matching discipline applies here as with any bridged token: an ERC20 UNI address will not correctly receive a BEP20 deposit, and confirming which network a specific casino has issued before sending is the only reliable way to avoid a lost transfer.
UNI's price tracks the broader crypto and DeFi market rather than the dollar, so it carries the same kind of volatility as Bitcoin or Ethereum for anyone holding a casino balance in it rather than moving funds straight through. Support for UNI is narrower than for the major coins on this list, so confirming a specific casino's current minimums is worth doing rather than assuming.
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This list holds fewer than 5 casinos, so it is kept out of search results until it offers a real choice.