It’s already been delisted from Steam
Historical spin-off portAssassin’s Creed Liberation HDcould well end up totally unplayable for people who own it. At the start of July, the publishershared15 getting-on-a-bit games they intended to shut down online services for, including access to bought DLC. Now, Assassin’s Creed Liberation HD,Space JunkiesandSilent Hunter 5have already been delisted from Steam at Ubisoft’s request, and won’t be accessible from September 1st.
I’ve contacted Ubisoft for more clarification about these delistings, so I’ll let you know if I hear back from them.