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Valve Hammer Editor (Source 2)

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Hammer 5.x
Screenshot of Hammer 5.x.
Developer(s)
Valve Corporation
Initial release
September 9, 2015
(Dota 2)
Stable release
Actively developed
Type
Map Editor

Hammer (version 5.x), sometimes informally called Hammer 5 or Hammer 2, is Valve's in-house level editor for Source 2 games. Compared to its predecessor, Hammer 4.x (on Source), the user interface has been redesigned using Qt and the workflow can differ a lot from the old, BSP-oriented process. In many ways, it is closer to that of modern modelling suites commonly used in the industry.

Hammer 5.x is available in Workshop Tools DLC for games that support it, namely Half-Life: Alyx, Counter-Strike 2, Dota 2, etc.

Overview

Documentation

Version history

Version Game Release date Features
5.0, (build 9743) Dota 2 September 2015? Initial release of Source 2 Hammer for Dota 2.
Todo: Add more information.
5.0 (build 8838) SteamVR Home 2017
Todo: Add more information.
5.0, (unknown build) Half-Life: Alyx May 16, 2020‎
Todo: Add more information.
5.0, (unknown build) S&box July 26, 2022
  • Added Asset Browser
    Todo: Add more information.
5.0, (build 9832) Counter-Strike 2 June 7, 2023 Initial release of Source 2 Hammer for CS2.[confirm]
  • Added Workshop Item Tools and Workshop Manager
    Todo: Add more information.
5.0, (build 9960) Counter-Strike 2 March 22, 2024 Latest version for CS2.