Overview Reddit is hosting a virtual hackathon from August 28th to September 17th, 2025. We’re offering $49,000 in prizes for the best apps built for redditors. The challenge: Build a new game, social experiment, or experience on Reddit’s Developer Platform using our Interactive Posts feature. For this hackathon, we're asking developers to use Devvit Web, which allows you to build Devvit apps using web technologies you’re already familiar with (e.g. react, phaser, three.js), genAI tools, or your favorite game engine (Godot, Gamemaker, Unity, etc).
Categories:
UGC (user-generated content) Games: anything incredibly Reddit-y, fun, and community-driven that features user-generated content. User content can come in the form of posts, comments, drawings, or images. Examples of existing Devvit games that include UGC are: r/flappygoose, r/pixelary, r/riddonkulous, r/leapcraft, r/Spottit.
Daily Games: guessing games, word games, drawing games, scrollers, puzzlers, pets, and more. While content doesn’t have to strictly be daily, it should make smart use of fresh, recurring content. Note that we’re still looking for something that is unique to Reddit and will drive redditor discussion here. Examples of existing Devvit games that include recurring challenges include: r/hotandcold, r/syllacrostic (which we recently acquired!), r/ninigrams.
Games must be built on Devvit Web and be compliant with our Devvit Rules. Read our guide on how to build games for Reddit for more guidance on building for our platform. For this event we are looking for polish, meaning apps that are ready to Beta or GA. We understand that not all projects will reach this threshold, but projects that are well tested and concept-complete will score higher. Getting started
Get started with the Quickstart
Browse our Template Library for building with a familiar framework
View examples of existing games on r/GameOnReddit
Join us on Discord for live support and office hours: https://discord.com/invite/Cd43ExtEFS
Inspiration Our previous hackathon has some excellent examples of games built with the platform. Sustaining Success Successful apps built during the hackathon can become eligible for Reddit Developer Funds, which rewards apps for reaching viewership milestones, or apps that are responsible for the creation of a new established community. Learn more about the program here. Eligible developers also have access to our Payments sandbox APIs to build premium layers or goods into their apps. To qualify for Developer Funds or Payments API access, developers need to meet our Earn eligibility requirements.
Aug. 28, 2025 - Sept. 19, 2025
Online
$49,000
