Weekly challenge · Week 140
Resets in 2d 9h
Build the most beautiful doom — a universe that holds on as long as it can before it dies. The longest-lived failure wins.
Your personal best
This device onlyNo qualifying run on this device yet. Your first eligible universe sets the baseline.
Every player starts from the same founding universe; your edits create a traceable branch from it. Name, share, copy or download a universe this week and it joins the board automatically.
No entries yet this week.
The board is empty — be the first. Tune a universe, then save or share it to take the lead.
Each week sets one goal — reach deepest into the habitable window, keep a living universe closest to its edge, or make a failed universe last the longest. Name, share, copy or download a result and it joins the board: no sign-up, no account, nothing to install.
Everyone enters through the same deterministic founding universe. Your best qualifying score stays on this device, while intentionally published results can join the public board. When the timer resets, a fresh goal and seed begin.
There are no prizes and no way to lose. The point is to learn the physics by playing with it: to feel how a hair’s change in one constant swings a whole universe from lifeless to teeming.