Mass Effect: Andromeda

Mass Effect: Andromeda stands as the most catastrophic sequel of 2017, because its horrifying facial animations, lifeless open worlds, and writing that made Commander Shepard's adventures seem like Shakespeare directly killed the franchise for five years and shuttered BioWare Montreal. Only 58% of critics on Metacritic recommended it, a 30-point drop from Mass Effect 3. It is the only entry on this list that single-handedly ended a studio.