Reddit’s Game of the Day Hackathon Online Join Reddit to build incredible daily games! $35,000 in prizes Dec 08, 2026 09:00 PM EST to submit 1066 participants
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 13520 participants
#BuildHybridAI 2026 Online Build AI apps that run on-device and in the cloud with Firebase AI Logic. $30,000 in prizes Nov 30, 2026 05:00 PM EST to submit 2048 participants
Meta VR Start Developer Competition 2026 Featured Online Accelerate your VR development journey with Meta VR Start and compete for $1M in cash prizes $1,000,000 in prizes Nov 18, 2026 03:00 PM EST to submit 6142 participants
UGREEN Hackathon 2026 on AI NAS Featured Online Bring Your Skills to UGOS $46,000 in prizes Nov 16, 2026 02:45 AM EST to submit 2442 participants
PayPal AI Hackathon Online Build what’s next with PayPal and AI $67,500 in prizes Winners TBD 35829 participants