I've been thinking about getting the Assassin's Creed series for PC when they next come on sale. last time however what stopped me was that aside from the first one Steam has the following notice on all of them
Requires 3rd-Party Account: Ubisoft Account (Supports Linking to Steam Account)
This is a deal breaker for me as my setup for Steam on my PC is generally offline play always (downloads are on a laptop and i've never needed to verify my account on my PC) and a "requirement" for a third party account to me makes it sound as if i need to go online to create and log into a UPlay account to play single player. also requiring to go online to log in to play a single player game to me sounds very much like DRM and i'm anti-DRM
It is my understanding however that Halo on Steam has a similar notice but for XBox Live and that this is just for multiplayer, meaning that for someone who would play it for single player only offline, the third party account wouldn't be needed. and when me and my father played Assassin's Creed on the XBox Consoles neither one of us needed to make a Uplay account or be online.
I am aware of a a question from 9 years ago talking about DRM in Assassin's Creed 2 and i would consider needing to log in to play a single player game offline as DRM, but none of the pages actually say there is DRM (not that it's a guarantee. Denuvo is in Code Vein's 3rd-party EULA but not mentioned on the store page)
So i am wonder if any game on the Assassin's Creed Franchise requires UPlay to play offline single player