The exact duration of the window is unknown, but past windows lasted for about a week. Stardock generally announces the exact duration of the window just before said window opens.

You can download whenever you want once you've been charged. It doesn't shut off.

I was replying to the post immediately above mine.

As was already noted by previous posters, the window is generally a week or two but we don't have any definite plan just yet.

Touche

I'll go back to my corner now

Original, or remake?

I don't know anything definitive, but last I knew, tomorrow was still a valid target date.  This could still change, but it's at least still on the table.