CretaサポートCan I try the Multiverse without installing anything?
まだ日本語では提供されていないため、原文で表示しています。上のメニューから翻訳できます。
Yes. Next to the download button on the Multiverse page there is a link that opens the world on platform.creta.world, which runs in your browser.
The desktop launcher is the fuller experience — it downloads content ahead of time instead of streaming it, so it loads faster and looks better — but the browser route needs nothing but a sign-in.