World Cubes (obergax)

United Kingdom

Build with Gemini XPRIZE

Online

$2,000,000 in prizes. Build with Gemini. Ship products that impact the world.

$2,000,000 in prizes
Aug 17, 2026 04:00 PM EDT to submit
20247 participants

Arm Create: AI Optimization Challenge

Online

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

$8,000 in prizes
Aug 14, 2026 07:00 PM EDT to submit
1502 participants

OpenAI Build Week

Featured

Online

Join a global week of building with Codex

$100,000 in prizes
Jul 21, 2026 08:00 PM EDT to submit
40520 participants

Meta Horizon Creator Competition - Game Design

Online

Design a production-ready mobile game. $250,000 in prizes.

$250,000 in prizes
Winners announced
568 participants

Google Cloud Rapid Agent Hackathon

Online

Building Agents for Real-World Challenges

$60,000 in prizes
Winners announced
14479 participants

GitLab AI Hackathon

Online

You Orchestrate. AI Accelerates.

$65,000 in prizes
Winners announced
6938 participants

Dev Season of Code

Online

Build. Learn. Ship. Scale.

Non-monetary prizes
Winners announced
1006 participants

Frostbyte Hackathon

Online

Shaping the Future of Technology & AI

Non-monetary prizes
Winners announced
1015 participants

Amazon Nova AI Hackathon

Online

Build your way with Amazon Nova

$40,000 in prizes
Winners announced
13421 participants

Gemini Live Agent Challenge

Online

Redefining Interaction: From Static Chatbots to Immersive Experiences

$80,000 in prizes
Winners announced
11845 participants

RevenueCat Shipyard: Creator Contest

Online

Collaborate with creators to build their app in 1 month

$165,000 in prizes
Winners announced
7062 participants

Codegeist 2025: Atlassian Williams Racing Edition

Online

Accelerate innovation: Build on Forge, extend Jira, Confluence, Bitbucket, and more— win your share of $120K.

$120,000 in prizes
Winners announced
3509 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
4973 participants

Arm AI Developer Challenge

Online

Build the future of AI on Arm: Create innovative, efficient mobile AI projects and compete to win

$15,000 in prizes
Winners announced
1632 participants

Horizon Hacks 2025

Online

Join HorizonHacks presented by Stem for Tomorrow in building solutions that make a real difference and empower the next generation

Non-monetary prizes
Winners announced
193 participants

Chroma Awards: AI Film, Music Videos, and Games

Online

An AI Film, Music Video, and Game Competition to Unite the Creative Community

$191,500 in prizes
Winners announced
5515 participants

Hack Day @ GDG Gombe — Build the Future with Gemini

Gombe, Nigeria

Build innovative AI-powered solutions with Google Gemini at GDG Gombe’s official MLH Hack Day!

Non-monetary prizes
Nov 15 – 18, 2025
54 participants

Meta Horizon Creator Competition: Elevate Your Mobile World

Online

Compete for 35 prizes, including two $100,000 grand prizes and a total prize pool of $1,000,000.

$1,000,000 in prizes
Winners announced
1405 participants

Meta Horizon Creator Competition: Mobile Genre Showdown

Online

Compete for up to 30 prizes, with a top prize of $100,000 per genre and a total prize pool of $1,000,000

$1,000,000 in prizes
Winners announced
1542 participants