About Backrooms Maker

NullZoner editor · Early preview v0.1.0 · Created by Jasand Pereza

Early preview. NullZoner is experimental software. Bugs, performance issues, and data loss are possible. Export .backrooms files regularly and treat cloud saves as unavailable — your work lives only in this browser.

What is this?

NullZoner is the Backrooms Maker editor — a browser-based tool for building backrooms-style and liminal 3D worlds. Draw walls and lighting zones in 2D, preview in real time, and play in first person with keyboard and mouse. This project was created by Jasand Pereza.

Backrooms Maker is the umbrella brand for creation tools in this ecosystem. NullZoner is the first product; future tools may ship under their own names as part of Backrooms Maker.

Early preview status

This build is a public early preview, not a finished release. You should expect:

Bugs in editing, saving, importing, exporting, and play mode
Performance issues on large maps or lower-end hardware
Breaking changes between preview versions
Features marked work-in-progress or missing entirely

We are iterating quickly. Re-save and export your maps before updating or clearing browser data.

Desktop recommended

NullZoner is built for desktop browsers with a keyboard and mouse. The editor layout is not responsive, and play mode uses WASD movement. Mobile and tablet use is unsupported and may be frustrating — you can still open the app, but we do not optimize for small screens or touch-only input.

Supported browsers: recent Chrome, Edge, and Firefox on desktop. Safari may have WebGL quirks.

Your data stays local

Maps are stored in your browser using IndexedDB and localStorage. There are no accounts, no cloud sync, and no server-side copy of your work. Clearing site data, using private browsing, or switching browsers can delete unsaved or unexported maps.

Back up your work: use File → Export to save .backrooms files to disk regularly.

Feedback and bug reports

Found a bug or have a feature idea? We want to hear from you. A dedicated contact email is coming soon — check the home page contact section for updates.

When reporting an issue, please include:

Browser and operating system (e.g. Chrome 130 on macOS)
Steps to reproduce the problem
Whether the issue happens in edit mode, play mode, or both
Editor version: 0.1.0

Changelog

v0.1.0 — Early preview

Initial public early preview of NullZoner
2D map editor with lighting zones, prefabs, and procedural world modes
Real-time 3D preview and first-person play mode
Local map library with .backrooms import and export

Trademark note

Backrooms Maker is a fan-made creation tool. It is not affiliated with any official Backrooms IP holder. “Backrooms” and related terms refer to widely shared fan lore and aesthetics.

Last updated: July 2, 2026