Free writing program for books?

I've had an idea for a book in my head for a long time and am now looking for writing programs. Can you help me? I'm looking something like this:

It should be free (preferably the full version as well).
It should be a little more focused on writing books than Word, so not a completely pure writing program.

I know it's not that easy, but if you know something that halfway meets these requirements, I would be very happy about it.

Thanks in advance, best regards 5ilverm00n

Ps. It would be nice if you already had some experience with it yourself, but of course I'm also happy to receive other answers. ^^

Pss. I write on my laptop.

You can use office online.

In that case, it doesn't cost anything, the data is stored on Microsoft's oneDrive cloud. And of course you can download them at any time.

https://www.office.com/

Otherwise you can use openoffice. Is actually everything there, Word, Excel, Powerpoint, etc. But it's ne free software

http://www.openoffice.org/de/download/

It should be a little more focused on writing books than Word, so not a completely pure writing program.

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can you describe that in more detail?
I know a program that costs little and is fully Word compatible.
Word is too expensive, Libre (Open Office) may be too simple but free

Write is Ability's word processing application. With word processing, you can create a document and then revise it until it reads and looks the way you want it. With Write you can create and edit documents, business letters, annual reports and other printed materials, including:

Business memos
Promotional materials
Business reports
Ad texts
Business letters
Book manuscripts

You can also insert spreadsheets, diagrams and drawings into any document created with Write.

There are two user interfaces available in Write - a tabbed toolbar interface and a more traditional toolbar interface. The help is mainly designed for the toolbar surface. For more details on the tabbed toolbar and toggling between interfaces, see The Interface Tabbed Toolbar.

Many professionals use papyrus author.

And for a good reason.

https://ability.com/de/home/home

costs 35 euro

Thank you! I'll have a look.

OK. I will definitely have a look.

https://www.papyrus.de/preise/

179 euro? Happily but good

It is very good. And soon it will be Christmas…

I checked out Papyrus Author and I'm really excited. However, I write very privately and actually don't plan to publish the book. I will definitely take a good look at it. Maybe I wish it for Christmas?

My parents actually forbid me to spend money on apps, I don't know why, but well…

I can try to persuade you.

This is not an app, but a full program that receives regular updates. However, they are not always free.

I'll check…

Okay… ^^