Lambda Content Authoring Tools
v1.6.0 Halloween Released 7th October, 2026 Windows, macOS & Linux
Content Authoring Tools

Everything you need to author weapon finishes, stickers, graffiti, music kits, maps and vScript, packaged into a single application with a one click publish to the Workshop.

Other platforms
All Downloads
Every build of 1.6.0 is 64 bit only. Pick the one that matches your machine.
Windows
x64
Your system
Format
Installer (.exe)
Size
1.5 GB
Download 1.5 GB
SHA-256
macOS
x64
Your system
Format
Disk Image (.dmg)
Size
Unavailable
Linux
x64
Your system
Format
AppImage
Size
1.4 GB
Download 1.4 GB
SHA-256
What's New in 1.6.0
The latest changes shipped to Content Authoring Tools.

- Better Linux support - Updated Hammer++ to the latest version - Added Zombie Survival Hammer FGD and assets - Added Rush Hammer FGD and assets - Assembly is now out of beta - Added a root folder in the file tree in Assembly

Read the full changelog
Getting Started
New to authoring content for Lambda? Start here.