Shares of UK gaming company Frontier Developments Plc has suffered a 42% plunge in sales, its biggest intraday decline on the record, after sales of its flagship F1 Manager 2022 title fell below expectations in December.

Following the performance of F1 Manager, its Formula One car racing management simulator, the company said that they do not expect to meet consensus estimates for revenue and operating profit for its fiscal year ending in May.

Frontier said players have become more sensitive to prices and purchased fewer copies of F1 Manager than it had expected, even when the game launched last August was selling at a discount in December.

The company said that it is now aiming for at least £100 million ($176 million) in revenue for its current fiscal year, compared with $200 million a year earlier.

“This is even more disappointing given the expectations around the F1 Manager game, which many had expected to be a stellar addition to the portfolio,” said Mirabaud Securities analyst William Mileham.

Other major European video-game stocks also fell, with France’s Ubisoft down by as much as 3.9% and Sweden’s Embracer Group AB dropping 3.1%.

The company is also reviewing its strategy for titles developed by third-party studios.

“We expect the reckoning to be extreme in the short-term” with earnings estimates to go down by potentially 40% in fiscal 2024, said Citigroup analyst Thomas Singlehurst.