On 14 January 2011, the DLC titled 'Fusion' was released on Steam, which merged the levels of The First Encounter into The Second Encounter. There will be an outside tower on your left. Serious Sam: The Random Encounter Serious Sam: The Greek Encounter Serious Sam: Double D: XXL Serious Sam's Bogus Detour I Hate Running Backwards Serious Sam: Tormental Serious Sam : The Second Encounter is a first person shooter, It is an expansion pack but you do not need the orginal game to install or play. , 'Gathering of Developers Unleashes Serious Sam: the Second Encounter', 'There's a Serious Sam Collection heading to Switch next week', 'Because you Seriously wanted it! Unlike the first game where it featured one boss in the final level, The Second Encounter features three bosses. This engine is also being developed to harness the full capacity of HDR and High Definition mapping.
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'.
