Serious Sam Fusion 2017 (beta) is a Croteam hub that brings several Serious Sam games together in one application, rather than a standalone Sam adventure with a single campaign premise. The listed games are Serious Sam HD: The First Encounter, Serious Sam HD: The Second Encounter and Serious Sam 3: BFE, with VR versions also included. The design centers on making those separate entries work through shared technology and features.
Its distinctive format lets players move between levels from different games without exiting the application. Fusion also combines servers for The First Encounter, The Second Encounter and Serious Sam 3 in one listing, with map voting across games. Shared workshop support and cross-game mods extend that connected structure, while split-screen and multiplayer options give the hub both cooperative and competitive play contexts. The listing also describes multiplayer between owners of VR versions and their flat counterparts.
The store description identifies Fusion as a beta and notes that bugs may occur, so its role is best understood as an evolving common framework for the listed titles.
