It'll encompass the "insane action" of the game, but beefed up "to current standards" with a co-op tourney mode thrown in. It's out "early 2010".
They've just released Serious Sam HD for Xbox 360, PS3 and PC - of which they'll be patching in dedicated server support and deathmatch shortly, reports
Serious Sam HD: The Second Encounter has all the "insane action of the original game but with visuals beautifully rendered to current standards" boast Croteam. It's releasing "in early 2010 for PC and home console," they added.