Hack Reddit 2025

Overview

Reddit is hosting a virtual hackathon from February 27th to March 27th. We’re offering developers $36,000 in prizes for the best apps built for redditors!

The challenge: Build a new game, social experiment, or experience on Devvit (Reddit’s Developer Platform) using our Interactive Posts feature. We’re looking for massively multiplayer games and experiences. Our favorite apps create genuine conversation and speak to the creativity of redditors. Apps that were submitted for our previous hackathon are not eligible to participate in this hackathon.

Getting started

1. 
   Get started with the quickstart.


2. 
   Once you have Devvit set up, you can dive deeper with interactive posts.


3. View the resources tab for examples, inspiration, playground links, and more.


4. Join us on Discord for live support and office hours.

Inspiration

Our previous hackathon has some excellent examples of games built with the platform.

Your app can be designed for a new subreddit, similar to r/place, r/pixelary, or the button (Reddit’s April Fools’ Day games are great inspiration), or you can build with a specific topic or community (e.g sports, animals, entertainment, beauty, etc) in mind.

See r/pixelary, r/chessquiz, r/riddonkulous, and r/hotandcold for examples of apps built to work in feeds.

Recommended Mechanics

• 
  Scheduling posts. r/chessquiz regularly posts a new puzzle every 4 hours.
  


• Encourage user-generated content. r/darkdungeon lets users design their own dungeons.


• Prompts and templates. E.g. r/pixelary suggests specific words to draw and prefaces comments with “I tried”.


• 
  Use setCustomPostPreview. Create a unique preview for every post. This will load instantly in feeds.
  


• 
  Make it performant. Follow our best practices to make your app as fast as possible.
  

Feb. 27, 2025 - March 28, 2025

reddit

Online

$36,000