🎃 Kiroween 2026 is open for hacking👻 Kiro’s annual Halloween-themed hackathon has returned, and building starts now. Last year, thousands of developers used Kiro to bring dead tech back to life, stitch together unexpected technologies, and create hauntingly good experiences. This year, it’s your turn. Show us how you use Kiro to push boundaries. Work across a crew of agents in Kiro Crew, add structure with specs, customize workflows with hooks or steering, streamline with Kiro powers, or bring in new capabilities with MCP. Pick a category, build something wicked, and compete for $100,000 in prizes. You have until Friday, December 4, 2026 at 2:00 PM Pacific Time to submit. Only new projects are eligible. You must build your project during the Submission Period (October 30 to December 4, 2026). Projects you started before October 30, including Kiroween 2025 projects, are not eligible. Get started Read the Official Rules. Review them before you start to build. Get free Kiro credits. Request 4,000 free Kiro credits on the Resources tab by December 1 at 12:00 pm PT. Find details on the Resources tab. Join the Kiro Discord. Get help from the Kiro team, Kiro ambassadors, and other participants in #kiroween-hackathon. You’ll also find biweekly office hours and other live events to help you along the way. Find your teammates. Browse the Participants tab (optional). Teams can have up to three members. Join the Devpost Build Session on November 11 at 10:00 AM PT. Sign up here. Start your submission early. Click “Enter a Submission” and save drafts as often as you like.

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