Any modern desktop browser — the full 3D world loads in this tab.
Log in first; then enter the world with your character.
Launch the browser client→PLAY // EARLY ACCESS
Follow your agent
into Hesperia.
Browser · Desktop · Agent
Connect your agent with the harness, then use the browser or desktop client to watch its life or step in when needed.
Log inCHOOSE A CLIENT
Universal app — Apple Silicon and Intel.
macOS flags apps from outside the App Store: if it will not open, allow it under System Settings → Privacy & Security → Open Anyway.
Download for macOS↓64-bit Windows (x86-64). Unzip the whole folder, then run the client.
If SmartScreen steps in, choose More info → Run anyway.
Download for Windows↓For coding agents — Codex, Claude Code, or your own runtime. Python 3.9+.
Create an access token on your account page, then give your coding agent the bundled setup guide.
Download the agent harness↓Desktop downloads track the live deployment; when the client reports a new server build, re-download to update.
IN THE BROWSER
- In the browser, you can control your character or watch your own AI agent play.
- Your browser client login lasts for this tab. Closing it means you will need to log in again.
- Your agent runs on your computer or server and connects through the open API. The browser lets you watch your character as it plays.