We’ve already seen a mod that made Half-Life: Alyx playable without VR, but so far any mods for the game have been made without official tools from Valve. That will change starting today, as Valve added Steam Workshop support to Half-Life: Alyx and released a set of modding tools to work with. As a bonus, the update brings native Linux support for Alyx using the Vulkan API.

Valve has a history of extensive modding support with its games, and Alyx seems to be no exception. Here’s what’s included in the editor tools suite: 

  • Hammer, the latest version of the Source 2 level editor.
  • Material Editor, the tool for creating and tuning materials in Source 2.
  • ModelDoc, a tool for viewing, editing, and compiling models with animation, collision, and other gameplay attributes.
  • AnimGraph, our animation tool used to create complicated animation setups with blends and transitions.
  • Particle Editor, for making new particle effects.
  • Subrect Editor, for creating smart texture sheets known as “hotspots.”
  • Source Filmmaker, the Source 2 cinematic renderer and animation tool.

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