Arena of Champions not loading

The official page shows “Loading…” and, if startup throws, “Failed to start:” plus the original error text. That string is in the page itself. The suffix depends on the actual error: copy the full line when asking for help. I did not reproduce a CompileError and do not treat an old search snippet as a verified incident.

The first visit downloads a 45,268,668-byte WebAssembly build. An empty canvas before that file arrives is the loading state. Give it time on a slow connection before you assume the arena is offline. If the picture appears and there is no sound, click or press a key: the page resumes audio on pointer and keyboard input.

Work through this order. Hard-refresh the tab. Close extra copies of the game. Try another Chromium browser. An independent database reports a WebGPU requirement; the official site does not publish a version number, so I will not invent “Chrome 113”. If the browser still stops at Failed to start, use the Windows client instead of fighting the tab.

Connection text, since version 0.10, separates three cases: the server cannot be reached, the server is restarting for an update, or the connection dropped. Restarts warn in game at five minutes, one minute, and ten seconds. The last minute closes new queues and practice. Version 0.12.1 fixed a fallback connection that stuttered when many people logged in. Version 0.21 fixed AltGr and Mac Option characters so email login can accept those keys.

A successful web request is not a matchmaking health check. The official site answered on 30 Oct 2026, and I found no shutdown notice. If you still cannot connect after the Windows client, the public channel named in the client community is Discord #bug-reports. For “is the server down?” rather than “how do I fix my PC”, use the status page.

Sign-in line is not a failed download

The 0.21.1 client notes add a line when the server is full, with position, estimated time remaining and time already waited. Leave Line exits it. A short countdown after a restart is also intentional. Once you reach that screen, repeated refreshes are not a fix for the initial WebAssembly download. The notes allow reconnecting within three minutes without joining the line again.