Potato Passer - Hackathon Submission
Inspiration
We wanted to create something that captures the chaotic, absurd spirit of Reddit while bringing communities together through shared silliness. The idea came from the game hot potato, but we asked: "What if we made it absolutely ridiculous and gave each potato a personality that slowly rots in real-time?" We were inspired by Reddit's love of memes, inside jokes, and the way simple concepts can spiral into beautiful internet chaos. The goal was to create viral moments that spread organically across Reddit's ecosystem while building connections between different communities.
What it does
Potato Passer is a Reddit-wide game where users pass virtual potatoes with unique personalities between each other using simple comments. Each potato has its own dedicated Reddit post showing its biography, current rottenness level, and complete journey history. Users pass potatoes by commenting !potato /u/username in any participating subreddit, which triggers automatic bot responses that create public spectacles and drive engagement.
Each potato is a character with a name like "Spudbert the Anxious," "Princess Taterella," or "Doge Potato" - complete with AI-generated artwork showing their lifecycle from fresh to completely rotten. If a potato sits with someone too long (48+ hours), the chain breaks and the holder gets publicly shamed with escalating consequences like "Spud Slayer" flair and auto-generated potato eulogies.
How we built it
We built Potato Passer using Reddit's Devvit platform with the Bolt starter project, which allowed us to create canvas-based potato posts and monitor comments across multiple subreddits. The architecture includes:
- Canvas-based Potato Posts: Each potato gets its own Reddit post with real-time displays of holder info, rottenness meters, pass history, and countdown timers
- Comment Processing Engine: Automatically detects
!potato /u/usernamecommands across all participating subreddits and validates potato ownership - AI-Generated Artwork: Created 46+ unique potato personas using OpenAI's DALL-E, each with 4 lifecycle stages (fresh, sprouting, moldy, dead) using conversational threading for visual consistency
- Real-time State Management: Tracks potato mood changes, rottenness progression, and cross-subreddit statistics
- Viral Response System: Auto-generates public replies like "🥔 POTATO PASSED! Spudbert the Anxious has been rescued from certain doom!"
The personas range from internet memes (Doge Potato, Pepe Potato) to Reddit culture (Spuddit the Orange, Karma Spud) to food puns (Sir Fries-a-Lot, Count Hasselback).
Challenges we ran into
The biggest challenge was working within Devvit's constraints while achieving true Reddit-wide functionality. Devvit apps only work in subreddits where they're installed, so we figure a hackathon is a good way to get the word out.
Generating consistent AI artwork across potato lifecycles required experimenting with conversational threading techniques to maintain visual character continuity as potatoes degraded from fresh to rotten. We developed specific prompt engineering strategies to preserve signature features (eye placement, shape, personality traits) while showing realistic decay progression.
Another challenge was designing the viral mechanics to be engaging without being annoying. We needed the bot responses to create spectacles that would intrigue newcomers while not overwhelming threads with spam.
Accomplishments that we're proud of
We created a genuinely unique social experience that turns mundane Reddit interactions into theatrical events. The 46 potato personas with full artistic lifecycles represent a massive creative undertaking - each character has distinct personality traits that come through in both their descriptions and visual progression.
The hybrid architecture we designed could genuinely scale across Reddit's entire ecosystem, creating organic growth through the "Potato Network" effect where successful communities attract new participants and mods naturally want to join.
The viral discovery mechanism is elegant: every potato pass becomes a mini-advertisement that introduces confused Redditors to the potato universe, creating natural FOMO and community growth.
What we learned
We discovered that the most engaging social games emerge from simple, deterministic rules that create complex emergent behaviors. The !potato /u/username syntax is dead simple, but it enables rich social dynamics around timing, strategy, and public shame.
Building for Reddit's ecosystem taught us about designing for viral spread - every interaction needs to be simultaneously functional for participants and intriguing for observers. The public spectacle aspect turns passive browsers into active participants.
We learned advanced prompt engineering techniques for maintaining visual consistency across AI-generated image sequences, which has applications far beyond potato games.
What's next for Potato Passer
Immediate expansion: Launch the Potato Network across Reddit's major communities, starting with meme-friendly subreddits and expanding through organic mod recruitment driven by engagement metrics.
Enhanced chaos mechanics:
- Seasonal potato events (Halloween Ghost Potatoes, Christmas Candy Cane Potatoes)
- Potato breeding systems where successful passes create "offspring" potatoes
- Cross-subreddit potato wars and competitions
- Potato NFT marketplace (satirical, using fake potato coins)
Advanced social features:
- Potato genealogy tracking family trees across generations
- Community betting on which potatoes will survive
- Potato insurance marketplace with fake cryptocurrency
- Integration with Reddit's award system for premium potato passes
Analytics and gamification:
- Comprehensive leaderboards across the entire network
- Mod dashboard showing potato-generated engagement metrics
- Achievement systems for potato passing milestones
- Integration with Reddit's community points systems
The ultimate vision is creating a permanent fixture in Reddit culture - where potato passing becomes as natural as upvoting, and every major subreddit proudly displays their potato passing statistics. We want to build the most gloriously absurd waste of time the internet has ever seen, and we want everyone to love it.

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