Amazon offers Prime members Assassin's Creed Syndicate for Windows for $17.99 with free shipping. (Non-members can spend $49 to bag free shipping; otherwise, it adds $4.98.) That's $2 under our December mention of a downloadable copy and the lowest total price we've seen. (It's a current best for a physical copy by $21.)

Prefer a digital copy? CDKeys offers a download for $18.62.