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Machine
A multiplayer AI image party game where players type prompts instead of drawing, and the funniest image wins. Solo-built end to end: game design, real-time backend, AI image pipeline, brand, and deployment.
- Role
- Founder · Design · Eng · Brand
- Live at
- slopmachine.app ↗
- Stack
- React · Supabase · FLUX Schnell
- Status
- Live · 10 game modes
Overview
A live multiplayer party game in the lineage of Gartic Phone and Quiplash, except the creative act is prompting an image model.
Everyone in the room gets the same seed, types their own prompt, and the AI renders whatever they asked for. The images come back all at once and the table votes. The fun of the game is in the divergence and surprise: six people read "most cursed vehicle" six different ways, and the payoff is the moment someone says "wait, THAT is what you made for that?"
I built the whole thing myself, from the server-authoritative game engine to the AI pipeline to the brand, and it runs live at slopmachine.app.

The project arc
Slop Machine started with a simple goal: build a playable version quickly and find out if the idea was actually fun.
The first version used a managed AI service because it let me focus on gameplay instead of infrastructure. Once people started playing, I ran into the next challenge: I needed more control over costs, usage limits, and the image generation process itself.
I rebuilt the AI pipeline to run through my own backend, giving me direct control over generation costs, rate limits, moderation, and player usage. That change turned the project from a prototype into a platform that could scale and be managed sustainably.
What I built
Six pieces had to work together: the engine, the pipeline, the prompts, the modes, the economics, and the brand.
Go-to-market
A consumer social product, so distribution is built into the mechanics.
Free tier as funnel
Anyone can join and play without paying, which grows rooms and creates natural pressure on the host to unlock more.
Host-pays spread
A single conversion brings five to ten friends along with it. The party-game spread mechanic, on purpose.
Output sells itself
A lobby full of absurd AI images is exactly the kind of thing people screenshot and send to a group chat.
Stack
Front end
React front end with real-time state sync and the room lifecycle UI.
Backend / Realtime
Supabase for Postgres, Realtime, Edge Functions on Deno, row-level security, storage, and auth.
AI
fal.ai FLUX Schnell for image generation. Server-side moderation, per-room and per-user cost controls.
Billing
Host-pays freemium billing with per-room and per-user cost caps.
Brand / Design
Built from scratch in Illustrator, Photoshop, and Procreate.
Ops
Deployed and running live at slopmachine.app.
Brendan Rogers · 2026