**Onslaught** opened to roughly $1.88 million domestically across nearly 1,900 theaters over the Labor Day frame, finishing well under $2 million for the extended weekend and confirming the market’s overwhelming consensus. Mixed critical reception (56% on Rotten Tomatoes) and a weak “C” CinemaScore reflected limited audience enthusiasm for the mid-budget A24 action-horror entry, which returned director Adam Wingard to smaller-scale genre roots after his larger studio films. Modest pre-release tracking, thin marketing momentum, and a crowded holiday period further suppressed turnout for the $15 million production. With actual figures now locked in, the sub-$2 million outcome faces virtually no realistic reversal, though stronger word-of-mouth or unexpected holdover strength could have theoretically lifted totals in an alternate scenario.