The Crew, Far Cry 4 and Assassin's Creed Unity will not be available to purchase on Steam at launch, Ubisoft revealed. All three games have already been removed from most Steam stores across the world.
According to Ubisoft, the publisher has been in discussions with Valve about these titles, and until everything is settled, the games won't be available on Steam. It's yet too early to say if the game's will never be available on Steam or if this is just temporarily.
As an alternative to Steam, players can purchase any of these titles on Uplay store or other digital distributors. Unfortunately for players, purchasing the games on Uplay will be a little more expensive when compared to Steam.