arbitrum Hackathons
Discover arbitrum hackathons in Web3 and blockchain.
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Status: EndedBUIDL with REACT: Fast-track to mainnet
Sep 1, 2025 - Sep 30, 2025
Prize Pool
$50.0K
Status: EndedKwala Hacker House: Next-Generation Web3 Gaming & NFT Innovation
Sep 6, 2025 - Nov 7, 2025
Prize Pool
$1.5K
Status: EndedThe DeFiTimeZ Multichain Mayhem – Code across chains, break all limits
Sep 1, 2025 - Sep 30, 2025
Prize Pool
Non-cash Prize
Status: EndedCortensor Hackathon #3
Nov 22, 2025 - Dec 28, 2025
Prize Pool
$3.0K
Status: EndedHack4Privacy by iExec x 50Partners
Dec 8, 2025 - Feb 7, 2026
Prize Pool
$6.0K
Status: EndedReactive Bounties 2.0
Nov 16, 2025 - Jan 5, 2026
Prize Pool
REA6.0K
Status: EndedCortensor Hackathon #4
Jan 19, 2026 - Feb 28, 2026
Prize Pool
COR3.0K
Status: EndedLiquify Indexer API Hackathon: $100,000 Total Prize Pool
Jan 21, 2026 - Jun 14, 2026
Prize Pool
$15.0K
Status: Active48 Weeks. 48 Blockchains.
Feb 1, 2026 - Dec 31, 2026
Prize Pool
$10.0K
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