Serious Sam Fusion 2017 is a fresh build of Serious Sam games developed by Croteam!

The best part? If you own a Serious Sam game listed below you'll be getting a Serious Sam Fusion 2017 version of that game for FREE!

Serious Sam Fusion 2017 is also a central hub for existing (and upcoming) Serious Sam games that will enable seamless integration of new engine features, patches and upgrades.

Games available in Serious Sam Fusion 2017

  • Serious Sam HD: The First Encounter - now available!
  • Serious Sam HD: The Second Encounter - now available!
  • Serious Sam 3: BFE (coming soon)
  • VR versions of all games will be a part of Serious Sam Fusion 2017, too!

Please keep in mind that this release of Serious Sam Fusion 2017 is currently in beta; you'll experience extreme violence, inexplicable joy, some sadness, sometimes all at once, and, how shall we put it... eeerm, occasional bugs. Please use the official discussions page to let us know. Thank you!

What does it do?

Serious Sam Fusion 2017 will enable a lot of cool new features, like a common workshop and cross-game mods. All of the games can be started from one application, so you can jump between playing The First Encounter level to a Serious Sam 3 level and back without exiting the game. When listing game servers, servers playing TFE, TSE, SS3 – will all appear in the same list and you can vote map across games if you want. Oh, and VR games will be able to be played in multiplayer together with their flat counterparts!

Since there are so many changes and exciting new features, we'll just go ahead a list them here as bullet points.

Cool new features in Serious Sam Fusion 2017

  • All games now support SteamOS/Linux/OSX!
  • Split-screen!
  • 64bit executables
  • Support for Vulkan API (DirectX9 is now being removed)
  • Multithreaded rendering
  • The new "light-weight" savegame system - savegames are now saved much faster, are very small and stored in the Steam cloud, and savegames still work even if a level is changed in a patch, or if a mod is updated
  • Full support for all controllers including Steam controller, PS4 gamepads, all older DInput joysticks
  • Proper multimonitor support
  • Borderless window support
  • Customizable sound outputs
  • Proper 3D audio using a proprietary sound-mixer (the same approach as used in the old Classic games)
  • Improved physics engine with better handling of character movement
  • Texture streaming in all games
  • Much better modding support with customizable weapons and items, improved scripting (including better support for scripting networked games)
  • Lots of other improvements, optimizations and fixes



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The first version of the mod has been released and can be downloaded via the Steam workshop.

For those having trouble with the Steam workshop, an external file is available here on ModDB.

plans for future updates:
-VR Support
-improved character animations
-balancing adjustments

Dev update: new bloom pipeline working

Dev update: new bloom pipeline working

Serious Sam Fusion: HDR postprocessing mod 3 comments

After dealing with some rather annoying problems I managed to get the new custom bloom working inside the game. There still are a few issues, though...

First test release (0.2alpha)

First test release (0.2alpha)

Serious Sam Fusion: HDR postprocessing mod

First test release of the HDR postprocessing mod for Serious Sam Fusion.

Add file RSS Files
Mantling (BFE)

Mantling (BFE)


This mod adds mantling/climbing to ledge ability to BFE and most BFE-based custom game titles (list below). After jumping/falling press or hold jump key...

Quake Weapons and Items

Quake Weapons and Items


This mod adds the weapons and items from Quake as a resource for mappers. Also includes weapons from the two Quake mission packs, Scourge of Armagon and...

Shopping Encounter

Shopping Encounter

Server Tool

DESCRIPTION This mods adds four gamemodes to Serious Sam Fusion - "Shopping Encounter", "Shopping Survival" and their cooperative variants. Gamemodes...

HDfied BFE weaponsBFEfied HD weapons resource pack

HDfied BFE weaponsBFEfied HD weapons resource pack


DESCRIPTION This resource pack adds a bunch of weapons as resource: Serious Sam HD weapons, adapted to BFE - they have BFE-style pickups for weapons and...

nano's Gamemodes

nano's Gamemodes


PLEASE NO MORE MP MODS NANO >:( nano's Gamemodes is a collection of all the VS gamemodes I've ever done. Keeping the dream of making VS played again alive...

Dual Wield

Dual Wield


This is a weapon pack with two special "Dual wield" weapons which allow you to dual wield most of the default HD/BFE weapons. This mod doesn't allow you...

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