The Reddit Daily Games Hackathon Online Join Reddit and GameMaker to build incredible daily games for the Reddit community! $40,000 in prizes Winners announced 2991 participants
Kiroween Online Build something wicked for Kiroween, our annual Halloween-themed hackathon where developers dare to code in dark mode $100,000 in prizes Winners announced 4981 participants
Electroneum Hackathon 2025 Online Create innovative, scalable, and functional apps on Electroneum $52,500 in prizes Winners announced 1328 participants
AWS Game Builder Challenge Online Create a game with AWS services of your choosing: all skill levels welcome! $115,000 in prizes Winners announced 3758 participants