Straight answers.

A free, open-source Mac app that aims to run your Windows Steam games on Apple Silicon. The name joins the Japanese words zen (all) and bashi (bridge).

Not yet. Zenbashi is a pre-release prototype. Steam runs, the first game test is in progress, and nothing is ready for the public.

Yes. It is free software under GPL-3.0-or-later and there is no paid tier. If people want to support it, they can through donations, bounties or grants, but the app is never sold.

No, that is the point. Zenbashi is designed so that you never install Wine or see its dialogs. Setup is meant to be automatic. During the prototype stage that is still being built.

The goal is every Apple Silicon Mac from M1 onward, without hard-coding any one chip; no chip has been tested yet. Apple's D3DMetal needs Apple Silicon. Intel Macs would be best effort at most and have not been tested.

No. Compatibility varies by game and by chip, which is why Zenbashi keeps a compatibility database instead of making promises.

Games that rely on kernel-level anti-cheat generally cannot run this way, and Zenbashi does not try to get around anti-cheat. For those, a cloud gaming service that runs the game on a Windows machine and streams it to your Mac is the practical alternative. Zenbashi does not run one.

Release builds are planned to include it together with Apple's license notices, because Zenbashi is distributed free and for non-commercial use. You can also use a toolkit you downloaded from Apple yourself.

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Test games once a build exists, report results, translate, write code or documentation, or support the project. See the open source page.