Reddit’s Games with a Hook Hackathon Online Join Reddit and Phaser to build incredible games for the Reddit community! $40,000 in prizes Jul 15, 2026 09:00 PM EDT to submit 1726 participants
GitLab Transcend Hackathon Online Intelligent orchestration, now with context. $20,000 in prizes Winners TBD 1573 participants
USAII® Global AI Hackathon 2026 Online (* REGISTRATION EXPIRED JUNE 6 11:59 PM ET *) A global virtual AI hackathon empowering students to build solutions for real-world good—from everyday impact to career readiness. $15,000 in prizes Winners TBD 6083 participants
Reddit Mod Tools and Migrated Apps Hackathon Online Join Reddit to build moderation tools for the Reddit community! $45,000 in prizes Winners announced 3103 participants
Agents Assemble - The Healthcare AI Endgame Online Build Interoperable Healthcare Agents at the Intersection of MCP, A2A, and FHIR $25,000 in prizes Winners announced 4319 participants
DevStudio 2026 by Logitech Online Join the first ever Logitech Developer Challenge for a chance to win an all-expenses-paid trip to Switzerland and a $10,000 cash prize. $20,000 in prizes Winners announced 1316 participants
Reddit and Kiro: Community Games Challenge Online Reddit and Kiro are hosting a virtual hackathon for the best community game! $45,000 in prizes Winners announced 1926 participants
HackRU Fall 2025 New Brunswick, NJ, USA Rutgers University's 24-hour, student-ran hackathon! Join us in building amazing software and hardware projects! $50 in prizes Oct 4 – 5, 2025 454 participants