How do I export to Steam (both Win & Linux)?

I used to use NW.js, but see that it's now being deprecated.

I can see how to export to Windows and Linux, which I assume I'll need to do, but I don't see where I export for Steam. I have the Steamworks plugin, and have set the game up with achievements, etc, converting from Greenworks... but I have no idea what I'm meant to be doing.

Tried using the search function on this site, but it's a mess, highlighting info from 14 years ago, and Google doesn't appear to be useful either.

I used to be able to export for Win/Mac and Lin all at the same time. That convenience gone now?

Turns out the new exporter is really good and does it all for you... BUT... it doesn't appear to be compatible with your old saves if you use the older NW.js method.

I checked my Steam version, that I had a save. Uploaded the new version as a beta, and loaded that... saves immediately gone.

Woo!!! Progress!!!

"This app requires the Microsoft Edge WebView2 runtime. It will be downloaded and installed for you now."

Use the Linux exporter for the Steam Deck. Don't use the Windows WebView2 exporter - despite the Windows compatibility on Steam Deck, it's not good enough to run WebView2, but the Linux exporter runs natively. See Exporting to Linux and the Steam Deck.

> "This app requires the Microsoft Edge WebView2 runtime. It will be downloaded and installed for you now."

Use the Linux exporter for the Steam Deck. Don't use the Windows WebView2 exporter - despite the Windows compatibility on Steam Deck, it's not good enough to run WebView2, but the Linux exporter runs natively. See Exporting to Linux and the Steam Deck.

I used the Linux exporter. I fixed it by making sure Steam automatically chose the compatibility, rather than forcing the latest (which felt like an odd solution).