Kiroween 2026 Featured Online Build something wicked and git commit to the darkness. $100,000 in prizes Dec 04, 2026 05:00 PM EST to submit 10948 participants
OneAquaHealth IEEE Global Hackathon Online Healthy Waters Healthy Ecosystems.Healthy Communities $3,500 in prizes Winners announced 1358 participants
RevenueCat Shipaton 2026 Online Ship apps and start making money. $740,000 in prizes Winners announced 28560 participants
CockroachDB × AWS Hackathon - Build with Agentic Memory Online Agents that think. Agents that act. Agents that remember; reliably, globally, at any scale. $8,750 in prizes Winners announced 3688 participants
1st Nature's Blueprint Ideathon 2026 !! Online Can you solve problems, undergo rigorous peer review along with some bonus gift sessions by the mentor ? This Ideathon is for you !! But Make Sure You SMILE Non-monetary prizes Winners announced 106 participants
GlobeHack Tempe, AZ, USA Build the Tech. Sell the Vision. Non-monetary prizes Apr 18 – 19, 2026 250 participants