Launcher Guide

The launcher is the bridge between the website and the game runtime. Here is how it works.

The launcher screen

When you launch, TabWorld mounts the runtime in the same tab and shows a branded loading screen until the game reaches its menu. A top bar gives you fullscreen, logs, and a cache reset.

Version

TabWorld currently runs a 1.8.8 browser runtime. There is no version picker yet — 1.8.8 is the stable, widely compatible target.

Launch status

• Checking — TabWorld verifies the runtime files are present.
• Running — the runtime is mounted and booting behind the loading screen.
• Runtime missing — the runtime files were not found (see below).

Local config

Game worlds and settings are saved by the runtime in your browser (IndexedDB and local storage). TabWorld keeps its own data — like your server list and nickname — separately, also in the browser. Nothing is uploaded.

Clearing cache / resetting

Use the “Clear cache” button in the launcher top bar to drop cached assets and reload. This does not delete your saved worlds.

Launch fails — what to do

• Retry from the launcher, or reload the page.
• Clear the cache and try again.
• Confirm WebGL/WebAssembly support on the Play page.
• See the Troubleshooting guide for white/black screens and crashes.