Bierhoff THEOLIEN (Biethe)

France
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Kiroween 2026

Featured

Online

Build something wicked and git commit to the darkness.

$100,000 in prizes
Submissions open soon
1917 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
4388 participants

Build With AI: Basics

Online

Learn AI best practices by creating a solid proof-of-concept for your dream project.

$2,500 in prizes
Winners TBD
5111 participants

RevenueCat Shipaton 2026

Online

Ship apps and start making money.

$740,000 in prizes
Winners announced
28574 participants

Arm Create: AI Optimization Challenge

Online

One challenge. Three frontiers of AI. All powered by Arm.

$8,000 in prizes
Winners announced
2468 participants

OpenAI Build Week

Online

Join a global week of building with Codex

$100,000 in prizes
Winners announced
46670 participants

Reddit’s Games with a Hook Hackathon

Online

Join Reddit and Phaser to build incredible games for the Reddit community!

$40,000 in prizes
Winners announced
3062 participants

Build with MeDo Hackathon

Online

Build creative applications with MeDo, no coding required. Push the boundaries of what you can create.

$50,000 in prizes
Winners announced
8337 participants

DigitalOcean Gradient™ AI Hackathon

Online

Build smarter. Ship faster. Power the next wave of AI.

$20,000 in prizes
Winners announced
2591 participants

Amazon Nova AI Hackathon

Online

Build your way with Amazon Nova

$40,000 in prizes
Winners announced
13402 participants

Gemini 3 Hackathon

Online

Build what's next

$100,000 in prizes
Winners announced
35500 participants