An EVM-compatible blockchain for gaming, Ultra EVM (mainnet chain ID 19991) uses UOS for gas, offers low-cost transactions, and integrates with Ultra’s marketplace and NFTs.
Ultra EVM Network is Ultra’s EVM-compatible mainnet that uses UOS for gas and brings Solidity smart contracts into the Ultra Games, Uniq NFT, and Ultra Wallet ecosystem. Core use cases include game distribution, on-chain item/NFT minting and trading, in‑game microtransactions, and loyalty systems; as of Sep 2025, typical performance shows sub‑cent gas (<$0.01), ~0.5–1s block times, and hundreds+ TPS, with activity primarily from gaming/NFT flows rather than DeFi.
Ultra EVM is unique for its deep, first‑party integration with a consumer gaming platform (Ultra ID SSO, fiat on‑ramps, custodial or self‑custody wallet) while remaining fully EVM‑compatible for easy Solidity deployment and bridging. Compared with Ethereum L1 and many L2s, it delivers lower fees and faster blocks (~0.5–1s, sub‑cent gas) backed by Antelope‑style BFT finality and shipping‑ready tooling (SDKs, marketplace, entitlement/licensing) purpose‑built for game studios.
Ultra EVM Network uses UOS as the gas token for transaction fees. You can obtain UOS by bridging from other chains or purchasing using thirdweb Bridge.
To bridge UOS to Ultra EVM Network, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select Ultra EVM Network as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on Ultra EVM Network you can use thirdweb, which provides an easy way to build, monetize and scale your apps, games or agents. You can find detailed guides and documentation on https://portal.thirdweb.com to get started quickly.
To add Ultra EVM Network to your wallet, you can connect your wallet and click on [Add to Wallet] button at the top of the page. Alternatively, you can add the network manually using the RPC URL and chain details and add it to your wallet's network settings.
To send UOS on Ultra EVM Network, ensure your wallet is connected to the Ultra EVM Network network, enter the recipient's address, specify the amount of UOS to send, review the gas fee, and confirm the transaction in your wallet.