Crypto Gambling · Review
ActiveOnbort Review 2026: NFT Battles With ETH at Stake
Onbort is a Linea-based NFT battle game where players stake ETH and compete across attribute rounds. Its onchain format and stated use of Supra VRF are notable, but battle costs and independent security details are not published.
By the DappsAtlas editorial team · Updated
DappsAtlas score
5.5/10
Mixed
Our verdict on Onbort
5.5/10Onbort may suit Web3 players who want to use NFTs in competitive battles and are comfortable staking ETH. Its distinctive feature is a six-round format based on NFT attributes, with the site also describing Supra VRF-powered randomness. The main caveats are financial risk and limited published detail: fees, licensing, KYC requirements, and independent contract audits are not disclosed on the homepage. Review the battle terms and local rules before committing funds.
Score breakdown
How Onbort scores
- Security
- n/a
- Ease of use
- 5.0/10
- Fees
- n/a
- Features
- 6.0/10
Scores run from 0 to 10 and are based only on facts we could verify. Where information was missing we mark the score n/a rather than guess.
What is Onbort?
Onbort is a Web3 battleground on Linea where players use NFTs to compete in battles with ETH at stake. NFTs have attributes and rarity tiers, and players can select up to 10 for a battle. The site says players can find active opponents or invite a wallet address.
How Onbort works
Onbort uses NFTs as a battle team. Each NFT has attributes and a rarity level; the site says players can select up to 10 NFTs, whose attributes are combined for the contest. Onbort describes six attribute-based rounds, with the players’ totals determining who wins each category. The winner of a category receives one-sixth of the ETH pool.
7 features
Key features
01
NFT battle teams
Players use NFTs with distinct traits and rarity levels in head-to-head battles. The site lists rarity tiers from Common to Mythic.
02
Six-round contests
NFT attributes are summed for six rounds, and players compete for portions of an ETH prize pool.
03
VRF randomness
The site says Supra VRF powers battle and NFT-trait randomness, with results verifiable onchain.
04
Onchain quests
Onbort describes quests that can mint randomized NFTs, with harder quests offering better chances at rare NFTs.
05
NFT burning
Players can burn duplicate NFTs to craft improved ones, according to the site.
06
Opponent matching
Users can find active players or send a battle invitation to a wallet address.
07
Leaderboards and points
Leaderboards track wins, profits, and total score, while NFT holdings and onchain actions can contribute points.
Pros and cons
What we like
- Battles and NFT traits are described as using onchain Supra VRF randomness.
- The battle format combines NFT attributes across six rounds rather than relying on a single score.
- The site describes quests, NFT burning, leaderboards, and direct opponent invitations.
- Onbort runs on Linea, an Ethereum layer-2 network.
Watch out for
- Battles require ETH deposits, so users can lose funds as well as win them.
- Onbort does not publish battle fees or other platform charges.
- The site does not publish an audit or detailed information about smart-contract security.
- The outcome depends on NFT attributes and randomness, and the exact battle mechanics are not fully explained.
- Finding an opponent may depend on other players being available.
Onbort fees
Onbort does not publish its platform or battle fees on the homepage. Before joining a battle, review the displayed deposit and any charges in the battle interface and wallet transaction details. Linea network transaction costs may also apply.
Is Onbort safe?
Onbort says its battles and NFT traits use Supra VRF for verifiable randomness, but the site does not publish an independent smart-contract audit or detailed security review. Onchain transactions can be difficult or impossible to reverse, and battle deposits are at risk. ETH prices can also change.
6 steps
How to get started with Onbort
- 1
Connect a wallet that supports Linea and review the amount of ETH available for use.
- 2
Check whether your past onchain activity qualifies you for quests, NFTs, or rewards.
- 3
Earn NFTs through available quests, or use NFTs you already hold.
- 4
Review your NFTs’ attributes and choose up to 10 for a battle.
- 5
Find an active opponent or send an invitation to a wallet address.
- 6
Review the battle terms and ETH deposit, then confirm only if you accept the risk of losing it.
Who Onbort is for
Onbort is aimed at crypto-native players who already use wallets and NFTs and want to compete in attribute-based battles. It is less suitable for people who want a no-stakes game, clearly published fees, or independently documented contract security.
Onbort FAQs
What is Onbort?
Onbort is an NFT battleground on Linea. Players use NFTs with different attributes to compete in battles with ETH at stake.
How do Onbort battles work?
Players choose NFTs, create or join a battle, and deposit ETH based on their calculated win probability. The NFTs’ attributes are compared across six rounds, with each round representing a share of the ETH pool.
How do you get NFTs on Onbort?
Onbort says NFTs can be earned through onchain quests, with rarity affected by quest difficulty. Duplicate NFTs can be burned to craft better ones, though the exact crafting rules are not published on the homepage.
Are Onbort battles provably fair?
The homepage says battle randomness and NFT traits use Supra VRF, which is intended to make random outcomes verifiable onchain. That claim does not establish that the contracts have been independently audited.
What fees does Onbort charge?
Onbort does not publish its battle fees on the homepage. Check the battle interface and wallet transaction details before confirming a deposit, and account for any network transaction costs.
Is Onbort legal and safe to use?
Onbort does not publish licensing or KYC requirements on its homepage. Check whether online gambling is legal where you live before participating. The service involves financial risk and is for adults 18+; set limits and do not stake money you cannot afford to lose.
Compare
Onbort alternatives
Overtime is a non-custodial on-chain sportsbook for crypto users, with wallet-only access, no KYC claimed and markets on six networks.
Myriad Markets is a prediction market app on Abstract, BNB Chain and Linea where users trade on crypto, sports, politics and culture outcomes.
Predict Fun is a BNB Chain prediction market for trading sports, politics, crypto and esports outcomes, with yield on open positions.
Limitless Exchange is a Base-based prediction market for trading on crypto, sports, politics and world events, with its own LMTS token.
Probable is a BNB Chain prediction market for users trading on sports, crypto and global-event outcomes.
Levr Bet is a Monad-based sports prediction market offering 2x-5x leverage on single-game lines, for experienced and risk-tolerant bettors.
Same category
More Crypto Gambling dApps
Betdex is a licensed, non-custodial peer-to-peer sports betting exchange on Solana where users back and lay odds, funded with USDC.
Cloudbet is a crypto-only sportsbook and casino operating since 2013, aimed at bettors who want to wager with Bitcoin and 30+ other coins.
Jackbit is a crypto-first online casino and sportsbook with wager-free spins and VIP rewards, aimed at adults who gamble with cryptocurrency.
DuckDice is a crypto casino built around its own Original Dice game, with slots, live casino, crash and sports betting added.
sx Bet is a peer-to-peer crypto sports betting exchange settling bets on SX Network and Arbitrum, aimed at wallet-savvy bettors.
LuckyZoo is a browser-based social casino for adults, offering casino-style games with free Credits and no cash prizes or withdrawals.
Same chain
More on Linea
Aave V3 is a non-custodial DeFi lending protocol on 21 chains where users earn interest on deposits or borrow against collateral.
Uniswap V4 is the latest Uniswap DEX version with hooks and concentrated liquidity, running on 22 chains for self-custody token swaps and liquidity provision.
Uniswap V3 is a non-custodial decentralized exchange protocol for token swaps and concentrated liquidity provision across 40+ chains.
OKX is a major centralized crypto exchange for spot and derivatives trading, earn products and a Web3 wallet, with its own OKB token.
LayerZero V2 is a cross-chain messaging protocol and bridge infrastructure for developers and asset issuers, connecting dozens of blockchains.
Morpho Blue is a permissionless lending primitive with about $11.4 billion in TVL on DefiLlama, accessed mainly through curated vaults.
How we checked
Sources
No public sources were recorded for this review.
Last updated . Spotted an error? Tell us and we will correct it.