Ubisoft has advised those planning on playing Assassin's Creed III on PC to use a controller because the game is not optimised for keyboards.
In an interview with GameSpy, Assassin's Creed III's creative director Alex Hutchinson said the game works better with a controller and the studio won't be putting much effort into optimising the game for keyboard-based play.
Hutchinson said the PC will definitely be supported — it will just play better with a controller.
"We're definitely supporting PC, we love PC, but I think it'll be PC with a controller," he said.
"I don't see us investing hugely in a mouse and keyboard setup. I think if you want to play on PC and you want to play Assassin's Creed, you have a controller."
The game is due on the Xbox 360 and the PlayStation 3 from October 31. The PC version will follow soon after.