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backseatdevs

World's first crowd-developed game

your prompts change the game

season 1 the game finishes in —

try a prompt

add a new blob enemy that splits on death.

tip $2 — change the game in real timestreamlabs.com/massiveforge/tip

thinking…

play the game at backseatdevs.com/stable

question of the hour

…

answer in chat, or tip to change the game in real time — streamlabs.com/massiveforge/tip

the rules

  1. anyone can develop the game.
  2. the agent uses its judgement on what's safe to add — try to break things.
  3. new features hit the chaos branch first — anything goes, rapidly evolving.
  4. the stable branch ports in what works — tuned for balance + playability.

a small tip is required to participate — the only way to hold back high-volume, low-quality prompts.

tip $2 at streamlabs.com/massiveforge/tip

sponsorships go here.

after sponsors come aboard, prompts go free for all.

brands — reach us at the bottom of the page ↓

prompt history — last 20, newest first

  • — no finished prompts yet; the next build lands here
goal board — live
completed: —

$ the goals

every other goal is yours to set — each prompt writes what the game becomes next.

building now

  • — nothing building

posted

  • — loading…

frequently asked

What is this?
The world's first crowd-developed game. We built the bones and the agent architecture; the crowd decides what comes next.
What is it for?
An experiment and a demo in one — a live stress-test of our agent. Strangers throw it anything, and you watch how it handles what no one could have planned for.
Is it more than a game?
Yeah — the game is the fun part. Underneath is the thing we're actually building: an agent harness where every change is reviewed before it ships, traced to a source, and easy to undo. The point is an AI that runs on what's verified, not on what just sounds right. This is that harness, under live fire, in public.
What model is it running on?
That can change daily — the house runs whatever's sharpest, sometimes several working as a team. The model matters less than the system around it; that's the whole idea. The architecture is model-agnostic by design.
Why do I have to pay?
Quality and volume control. The test wouldn't be valuable with too many low-quality inputs.
Can I submit ideas for free?
Yes. We'll have countdowns to free afternoons where we let anyone prompt.
Will this make a good game?
Probably not, but don't bet against the internet. Stick around and find out!

— Built by Massiveforge.