Understand the loading stages
The first session prepares approximately 3.02 GB of game resources. Checking saved files, downloading missing chunks, verifying their integrity, and starting the engine are different operations. A completed download can still be followed by engine initialization.
The player begins downloading only after you choose Play. A first visit needs a stable connection and sufficient browser storage. Network speed and device storage speed influence the wait. There is no fixed completion-time promise.
Resume instead of starting over
Cancel stops active requests. Chunks already written and verified can be reused when you choose Play again in the same browser. A partially received chunk may download again. If a connection fails, restore it and retry; avoid clearing site data unless there is a specific reason to do so.
Not enough storage
Free some device space, close other game tabs, and retry. Browsers decide how much disk space each site can use; an estimate is not a guarantee that every subsequent write will succeed. Private browsing may restrict storage or remove it when the session ends.
Use Clear downloaded files in the player options to remove this game’s resource cache. This operation targets a separate cache and does not intentionally remove game saves. Export a save backup before using the browser’s broader Clear site data function.
Black screen or engine error
Check that WebGL2 and hardware acceleration are available. Try a current desktop browser and close demanding tabs. The Compatibility build button switches to the Asyncify runtime for the next start; it reuses the same game resource cache.
If the page reports that game resources are not available, the resource deployment may not be configured or reachable. Repeated clicks cannot repair a missing server configuration. Return later rather than looking for an ISO to upload: this player has no file-selection requirement.
Audio and input
Browsers may require a fresh click to allow sound after a long download. Click in the game and use the sound button. Check device volume and mute settings. For input help, see the controls guide.