Crysis and Unreal Tournament 3 were two of the most anticipated first-person shooters of the year for the PC, but you wouldn’t know that from their lackluster sales figures. According to research firm NPD Group, Crytek’s critically lauded FPS Crysis sold just 86,633 units last month, while the PC version of Epic's Unreal Tournament III fared poorly too, selling just 33,995 units.

By comparison, Call of Duty 4 for the Xbox 360 shifted a massive 1.57 million units on November. This could spell bad news for PC gamers as the incentive for developers to make PC games instead of console ones largely depends on the ability to actually make money from them.

Both games managed to score highly with critics, but the steep hardware requirements (especially with Crysis) often needed to run PC games at acceptable frame rates suggest that the bestselling titles are those that can be available to a wider market by having lower hardware requirements.