The Ubisoft+ subscription service often offers a 7-day free trial . Since this includes the Definitive Edition , you can play the base game plus all 12 major DLCs for free during that week.
Many "free download" installers are bundled with miners or Trojans. anno-1800-free-download-pc-game-version
Keep an eye on the Epic Games Store or Ubisoft Connect; they occasionally list a "Trial Version" that allows you to play through the first two tiers of the campaign (Farmers and Workers). Why it’s Worth the Wait (or the Sale) The Ubisoft+ subscription service often offers a 7-day