Features •
Quick setup •
Development •
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Documentation •
Bugs •
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Features
- High-performance: Capable of supporting thousands of concurrent players.
- Rich content: Offers a wide range of emulated content.
- AI player characters: Introduced intelligent player bots to enhance immersion.
- User-friendly: Scripts let you add content without touching engine internals.
- Lightweight: Memory usage under 300MB in low-memory mode.
- Customisable: Personalise your gameplay by tweaking settings in the
game.properties file or modifying the code to suit your preferences.
Quick setup
-
Make sure you have java 21 or above installed. (java --version on command line)
-
Extract the latest void.zip released bundle into a directory.
-
Run either the run-server.bat on Windows, or run-server.sh on Linux.
On first start the server will offer to download the game cache files into /data/cache/ (configured by storage.cache.download.url in game.properties). Alternatively extract the latest pre-modified game files cache.zip into /data/cache/ yourself.
You should see [Main] - Void loaded in ...ms to show the server is up and running correctly.
Ctrl + C to exit and shutdown the server when running from a command line terminal.
-
Run the latest client.jar and login with any username and password to create a new account.
Webclient setup (experimental)
- Set
web.server.enabled to true in game.properties.
- Run the server as normal ^.
- Open
http://localhost:8080/play in the browser and login with any username or password to create a new account.
Website api
The webserver can also expose account routes so a website's backend can create and manage accounts on the running server, without a restart or account reload.
They're protected by a single shared key, so they're for trusted server-side callers only, never a static site or browser.
- Set
web.server.enabled=true and web.api.enabled=true in game.properties.
- Set
web.api.token to a random secret of at least 32 characters (e.g. openssl rand -hex 32). Every request must send it as Authorization: Bearer <token>.
- Block
/api/v1/accounts on any public reverse proxy so only your backend can reach it.
| Method | Path | Body | Success |
|---|
GET | /api/v1/names/{name} | | {"name","available"} |
GET | /api/v1/accounts/{name} | | {"accountName","displayName","previousName","online"} |
POST | /api/v1/accounts | {"name","password","displayName"?} | 201 + account |
PUT | /api/v1/accounts/{name}/password | {"password"} | 204 |
PUT | /api/v1/accounts/{name}/name | {"displayName"} | account |
When creating, name is either a 1-12 character username (which is also the display name) or an email address, in which case displayName is required.
{name} in an /accounts path is always the account name, never a display name. Display names can't match another account's name, and /names/{name} checks whether a name is free as either. Changing a password logs the player out if they're online, and staff accounts (any rights) can only be changed in-game.
Errors use the api's {"error": {"code", "message", "details"?}} envelope: 400 bad_request, 401 unauthorized (missing or wrong key), 403 forbidden (creation disabled or a staff account), 404 account_not_found, 409 name_taken, 422 validation_failed (details names the name, displayName or password field), 429 rate_limited (with Retry-After), 503 unavailable.
Send the end user's address as X-Forwarded-For when creating accounts so web.api.registration.maxPerIP limits players rather than the caller:
curl -H 'Authorization: Bearer <token>' -H 'Content-Type: application/json' -H 'X-Forwarded-For: 203.0.113.9' \
-d '{"name":"[email protected]","password":"hunter22","displayName":"Bob"}' http://localhost:8080/api/v1/accounts
For more details see the full Installation Guide.
[!NOTE]
For common problems see the Troubleshooting Guide.
Development
Use IntelliJ (which is free to use) to develop with Void.
See the installation guide for more instructions.
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