Original Version Of Assassin's Creed III De-Listed From Steam, Uplay - Game Informer

If you want to play Conner's adventure going forward, you'll have to buy the remaster.

Check Out Gameplay From Assassin's Creed Mirage - Game Informer

Assassin's Creed: Revelations, Assassin's Creed Wiki

The delisted Ubisoft games are available to buy on Steam again, and the messages about them not being accessible have been removed : r/Steam

Ubisoft titles pulled from Steam may lock out players who bought them

Assassin's Creed (Video Game) - TV Tropes

Game Informer march 2015 by josh al - Issuu

Gaming Knight

Assassin's Creed 4: Black Flag Freedom Cry DLC dated

Assassin's Creed 3 Removed From Steam, Uplay Following Remastered Launch - GameSpot