I understand there are devlogs, but I noticed there’s a devlog category on the forum and a category on the website. So are they linked, or separate? How does that work?

Devlogs on a project page, with the Devlogs forum board are two completely different places. You can use either, or both, to publish your devlogs. I’ve seen people use the board to show progress on a game, and then move to having a project page and update that instead, when the project matures enough.

Either case, there are no hard restrictions. Just make sure to read the board rules before posting.

My game is still in a early stage, but it would be great to hear what people think of the idea and the looks of it so far. Putting up a page devlog seems more sensible to me, rather than a forum topic that’s basically a list of your own replies, it seems less organized.

As mentioned in my other comment on this post, you are allowed to have a page without any playable builds. The only thing to keep in mind is that you are transparent with potential viewers. Make sure it’s clear your project is still under development.

If I don’t have anything to play yet, what type of pricing do I need to choose? It seems not applicable in this case.

You can put your project for free, until you upload a build and change the price then.

And the cover image, should it contain the game’s name/logo? I’m not sure where it will be shown - it’s not clear to me.

There is no should or shouldn’t. It’s up to you to make an image that will attract viewers, while also communicating the game’s brand. It’s usually a good idea to show the game’s name with stylized graphics, to give a taste to viewers of what the game looks like. The cover is shown when users search for games, they see the cover, the game’s title and the small description text.

It sounds like you are thinking about it too much. Just go for it, and you can fix any mistakes along the way. Hope that helps, looking forward to seeing your projects around :)