: Grab the installer from GitHub and install it.

: Click the Install button. Ensure you have at least 42 GB of free disk space (SSD recommended for faster loading).

: For those interested in creating content, the Serious Editor 4 is available. Beginners can start with basic tutorials on creating levels and using the new "Scenery Mode" for building large environments.

: The platform will automatically install necessary redistributables (DirectX, Visual C++).

: While playable on controllers, many players find mouse and keyboard more precise for the game's high-speed action, though you may need to adjust your DPI settings.

Since GOG doesn't have a built-in Workshop like Steam, you can use the WorkshopDL tool to install mods manually:

For those looking to achieve a perfect run after installation, this guide walks through the first missions and early achievements: Serious Sam 4 100% Achievement Guide Walkthrough Part 1 Aussie Gamer 17 YouTube• Mar 3, 2022

: Paste the Steam Workshop URL into the tool and click Download .