/ AETHELIUM · PRIVATE CLIENT v0.463 · stable build · friends only

Just play.

A private game client built for playing with friends. No accounts. No moderation. No cloud services. Just your friends, your worlds, and your own server.

Build v0.463 · stable Windows desktop Free forever
Low latency · UDP networking
~30 players per server
Scripting · classic Lua
/02 — Community

Worlds in motion.

A live screenshot from an Aethelium server. Want your world featured? Host a session and share with the Discord.

Join Discord
CAM_01 · sandbox
AETHELIUM v0.463 friends-only
/03 — FAQ

Questions.

Short answers about how Aethelium actually works.

01What is Aethelium?

A free game client for private play with friends. It's classic-style sandbox gameplay running on your own server — no accounts, no corporate moderation, no telemetry. Just you, your worlds, and your people.

02How do I play with friends?

Download the launcher, sign in once with Discord, hit PLAY. The launcher picks an active server for you automatically. Active servers are listed in the Discord community.

03Is there voice chat?

Not built-in — and that's intentional. We use the Discord voice channels alongside the game. Better quality, zero latency, no cloud dependencies.

04Can I build my own worlds?

Yes. Worlds are just files — load any place you have on your server and your friends can join. Scripting works through classic Lua. Build sandboxes, arenas, role-play maps — anything goes.

05What's inside the installer?

A tiny Aethelium bootstrapper (~5 MB). On first launch it downloads the game client (~150 MB) into your AppData folder and creates a desktop shortcut. No background services, no auto-start, no telemetry.

06Is it safe to download?

Windows SmartScreen and some antivirus may flag the installer (custom builds plus self-extracting archives are classic false-positive triggers). Run it through VirusTotal before installing if you want a second opinion.

/ READY WHEN YOU ARE

Get the client.
Get your friends.

~5 MB bootstrapper · Windows · downloads game files on first launch (~150 MB). One-click install, desktop shortcut, no admin rights needed.