Grub Fortress
Download Grub Fortress.

Welcome to the official download page for Grub Fortress

Latest Version.

Build: TF:Grub Open Alpha Build 0015

Build Date: 05.12.2025

Installation Instructions

Step 1: Download the Source SDK

to run TF:Grub, you need to have the Source SDK Base 2013 Multiplayer Installed in order to launch the mod.
IMPORTANT: Several TF2 Sourcemods required the SDK 2013 branch to be set to previous2021 to function properly, TF:Grub is made on the new SDK, and requires the branch to be set to None or Default Public Version, please keep that in mind

Step 2: Downloading TF:Grub

to download TF:Grub, you may use the TF:Grub downloader

Step 3: Restart Steam

after the installer is finished installing TF:Grub, make sure to restart steam to make sure it appears in your steam library
Requirements
  • Steam installed
  • Source SDK Base 2013 Multiplayer installed
  • Team Fortress 2 installed
Any Issues with the Downloader?

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Troubleshooting

If the game doesn't appear in your Steam library after installing, make sure:

  • The mod installed into the correct sourcemods folder
  • Steam was restarted after installation

If the game doesn't launch, make sure:

  • You have the correct beta branch of Source SDK Base 2013 Multiplayer selected (None)