| Console: | Microsoft Xbox 360 |
| TV Standard: | Region Not Set |
| Release Date: | 2010-01-13 |
| Players: | 1 |
| Co-op: | Yes |
| ESRB: | T - Teen |
| Type: | Action, Shooter |
Croteam took their publishing rights from 2K Games to new startup Devolver Digital, after 2K Games became uninterested in Serious Sam, waiting for their long rival Duke Nukem Forever to finish. Both episodes were remade using Serious Engine 3 featuring updated visuals, better performance and lush environments, all in high-definition. The remakes featured 16-player online co-op (4-player in the Xbox Live Arcade version), deathmatch and a new game-mode called "Co-Op Tournament".
The remake of the first episode, Serious Sam HD: The First Encounter, was released on 24 November 2009 for Microsoft Windows through Steam, on 13 January 2010 for Xbox 360 through the Xbox Live Arcade and on 20 March 2017 for Linux through Steam thanks to the Fusion Engine.
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