Garry's Mod's September 2026 update adds 64-bit Windows binaries
The September 2026 Update is now live as of September 16, 2026. Its headline addition is 64-bit binaries for the Windows game client, dedicated servers, and most developer tools, including Hammer, for every version of the game. The 64-bit client can be selected from Steam launch options. This lowers the risk of running out of 32-bit memory address space and crashing on heavy servers or with many addons installed.
Spawnmenu and Sandbox changes
A new NPC variation has been added to the spawnmenu: Hacked Manhacks. The Dropship NPC can now take damage and is no longer invulnerable when spawned in Sandbox.
Spawnmenu content tabs can now have subcategories, which should help players find what they are looking for faster. The system is open for addons to take advantage of.
Player model selector overhaul
The player model selector menu has been overhauled with categories, increased size, and improved model rendering that better represents how the player model would actually appear in the game world.
Insurgency (2014) is now mountable
The update adds a new mountable game: standalone Insurgency (2014).
More fixes and the full changelog
As usual, the update also brings a huge amount of smaller fixes, optimizations, and other improvements to both the game client and the developer tools. The full change list is available in the blog post:
Artwork showcase: “Just one more thing!”