Alison Rowat of "The Herald" perceived "Doomsday" as "decidedly everyday" for a thriller, with Marshall's script having too many unanswered questions and characters not fully developed despite a decent cast. Rowat said, "In his previous films, Marshall made something out of nothing. Here he does the opposite". The critic acknowledged the attempted homages and the B-movie approach but thought that "there has to be something more". Steve Pratt of "The Northern Echo" weighed in, "As a writer, Marshall leaves gaping holes in the plot while as a director he knows how to extract maximum punch from car chases, beatings and fights without stinting on the gore as body parts are lopped off with alarming frequency and bodies squashed to a bloody pulp." Philip Key of the "Liverpool Daily Post" described the film, ""Doomsday" is a badly thought-out science fiction saga which leaves more questions than answers."