Project · 2026
Beyond the Fold
Your browser windows are how you see the world, and where it holds.
A puzzle-platformer where your browser windows are pieces of the world. One traveler, one landscape laid across your desktop, and it's only solid where a window is looking.
- Chapters, 25 scenes
- 12
- Real windows at once
- 1–3
- Automated tests
- 1,028
The rule
Seen is solid
Move a window, resize it, open another, overlap two: the world answers. Windows that touch are one walkable strip; a gap between them is a gap in the world. Widen one to build a bridge, carry an island the traveler rides, or find stairs that exist only where two windows overlap. The whole thing is printed like a woodblock: indigo key lines, misregistered color, and a wet edge of ink where each window's view gives out to bare paper.
Architecture
One world, held in the browser
There's no server. Every window connects to one SharedWorker that steps the simulation at 120 Hz, so a second window joins the same world just by loading the page. Each window holds a Web Lock named for itself, so the host notices a crashed window without being told, and renders its slice of the scene through its own off-axis frustum, so side-by-side windows show one continuous picture. A lantern-moth guide points the way when a puzzle stalls. It's live at beyondthefold.io, played on a computer with a mouse and keyboard; phones and tablets are told so up front.