Croteam has said that Serious Sam 3 will be finished sometime next year.
"Serious Sam 3 is happening for sure," CEO Roman Ribaric told Destructoid. "It is currently planned to be finished in 2010."
Only a few scraps of information have been released for Serious Sam 3 so far. Ribaric told Eurogamer in July that the game will drop the trademark cartoon visuals, although the hectic gameplay will return.
Croteam sprung into life this autumn with the PC release of Serious Sam HD: The First Encounter, which refit the original chaotic shooter with today's technology - primarily the Serious Engine 3.
The Xbox Live Arcade version will be released in January 2010, followed by Serious Sam HD: The Second Encounter sometime during the "early" part of the year.