Features
Versions and instances
- A version is the game itself (
versions/<name>/). - An instance is an isolated runtime environment: mods, configs and saves per instance.
- "Copy existing version" copies only what is necessary, never your saves.
The version list supports search, type filters and a context menu (open folder, rename, delete, export launch script).
Downloads
| Tab | Contents |
|---|---|
| Vanilla | Releases, snapshots, old versions, Bedrock (release / preview) |
| Mods | Filtered by loader and game version |
| Modpacks | CurseForge and Modrinth |
| Resources | Resource packs, shaders, worlds |
Sources are configurable in Settings → Downloads, including official, mirror and custom. Concurrency and rate limits live there too.
Accounts
Microsoft (device code + refresh), offline, and third-party auth servers.
Java management
Automatic scan, automatic download, and per-instance overrides.
Bedrock
- Shared version list and launch button with Java.
- Install path:
versions/Bedrock <version>/, package in itsbedrock/subfolder. - Pre-launch checks: Store build installed, Microsoft account signed in.
Updates
- Stable and snapshot support auto-update; downloads run in the background.
- A failed update never replaces the binary with a partial file.
- After updating, the built-in changelog dialog shows once.
- Beta does not auto-update.
Server features
Connecting to the official server provides:
- Notices — shown once per channel and per content fingerprint.
- Bans — a native error dialog with your device code and the reason provided by the administrator.
- Cloud settings — some toggles are controlled server-side.
No network is not an error: no dialog, no report, just a hint in the corner.
Extensions
Settings → Extensions: import by button or drag & drop (.tmlext / .jar, multi-file), then per-extension Details, Enable / Disable and Uninstall. Permissions are confirmed before the first enable, extensions enabled at last exit auto-start, and Refresh / Open folder are at the top. State and trust live in trusted.json (SHA-256). See Import & manage and Extensions.
Settings overview
| Group | Common items |
|---|---|
| Launch | Java, memory, window size, JVM args, game args |
| Downloads | Source, concurrency, rate limit, cache |
| Appearance | Theme, colours, language, animations |
| Other | Beta access, logs, data directory |
| Extensions (own page) | Import, permissions, enable / uninstall |
Shortcuts
| Key | Action |
|---|---|
F5 | Refresh current page |
Ctrl + F | Search versions / instances |
Ctrl + , | Open settings |
F12 | Open log |