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Hammer++ is a community-made modification of the Valve Hammer Editor for Source that provides an updated, more stable, feature-rich version of the editor.
Hammer++ currently supports the following branches of the Source engine:
Team Fortress 2 (x64 only)
Counter-Strike: Source (via 
)- Source 2013 Multiplayer
Source 2013 Singleplayer
Garry's Mod (x64 only)
Left 4 Dead 2
It is also included with 
Military Conflict: Vietnam, in lieu of vanilla Hammer.
Hammer++ for 
Counter-Strike: Global Offensive is no longer supported; Ficool recommends using Garry's Mod Hammer++ and porting the 
lightmapped_4wayblend shader. Alternatively, use Military Conflict: Vietnam's version of Hammer++.
Other games/mods tested
Main article: Hammer++/Docs/Installation for Other Games
Important:In order to use CS:GO Hammer++, you must have the csgo_legacy beta branch installed for 
Counter-Strike 2.
| Game | Hammer++ Version | Notes    
|
|---|---|---|
 Alien Swarm
|
CS:GO | |
 Half-Life: Source
|
Source 2013 Singleplayer | Configure Hammer for Half-Life: Source, then install to game's  bin folder normally.
|
 Half-Life Deathmatch: Source
|
Source 2013 Multiplayer | |
 Half-Life 2 Half-Life 2: Episode One Half-Life 2: Episode Two
|
Source 2013 Singleplayer | Install to game's bin folder normally.
|
 Half-Life 2: Deathmatch
|
Source 2013 Multiplayer | |
 Left 4 Dead
|
L4D2 | L4D2 Hammer++ appears fine on Left 4 Dead, except when compiling the map. Once compiled and joining the map, an error will appear and display: STEAM validation rejected and unable to interact with the menu after pressing ok. Workaround: Before compiling the map, check the box Don't run the game after compiling and then compile the map, after it has been compiled, enter Left 4 Dead and via console input: map <map name>.Also you can enable dev by going to manage < properties on Launch options type: -dev 1. |
| Left 4 Dead 2
|
L4D2 | Identical to Left 4 Dead, without the Steam rejection, only displaying error on console and unable to interact with the menu when exiting the map.
|
 Momentum Mod
|
CS:GO | [confirm] |
 Source Filmmaker
|
CS:GO | |
 Titanfall engine branch games
|
CS:GO | [confirm] |
 Day of Defeat: Source
|
Source 2013 Multiplayer | Install to game's bin folder normally.
|
 Black Mesa
|
Source 2013 Multiplayer | Check out the issues below in the relevant subpage. A separate version for Black Mesa is not planned. |
 Black Mesa (2012 mod version)
|
Source 2013 Singleplayer | Install to Source SDK Base 2013 - Singleplayer's bin folder and add a game configuration pointing to the mod; the Source 2013 SP compilers generate BSPs that are compatible with  Source 2007.
|
 Mapbase
|
Source 2013 Singleplayer | Install to game's bin folder normally.
Check out the issues below in the relevant subpage. |
 Postal III
|
Source 2013 Singleplayer | Requires modification to Postal 3's FGD file(s); Recommended to use Postal 3's compilers instead; Some Hammer features from Postal 3's are missing like 'prefabs';
Requires Source SDK Base 2013 MP/SP to be installed; Requires folder linking inside SDK Base's 'sourcetest' folder to load assets; Hammer++ will crash if placed inside Postal 3's bin folder. |
 Portal
|
Source 2013 Singleplayer | Install to game's bin folder normally.
|
 Portal 2
|
Garry's Mod | Portal 2 support still has some problems, this will be released at a later date. |
 Portal 2: Community Edition
|
Garry's Mod? | Check out the issues on the relevant subpage. Support by developers is not planned, and usage is strongly discouraged; some Hammer++ features will be added to  Strata Hammer.
|
 Hunt Down the Freeman (launch version)
|
Source 2013 Singleplayer | Install to game's bin folder normally.[confirm]
|
| Hunt Down the Freeman (latest)
|
Source 2013 Multiplayer | Install to game's bin folder normally.[confirm]
This build uses |
 TeamSpen's Hammer Addons
|
Any which supported by TeamSpen's Hammer Addons | Check out the issues below in the relevant subpage. |
Features
- Accurate lighting preview
- Upgraded graphic fidelity
- Significantly better stability
- Particle rendering
- 2D + 3D skybox preview
- New model browser, particle browser, color editor, and keybinding editor
- Realtime display of fog and ropes
- Variety of new tools such as physics simulation, gizmo manipulation, drawing of polygon shapes, and convex brush merging
- New
func_instancetools - Quality of life improvements
- ... and much more!
A more detailed feature list can be found on the Hammer++ website and you can support ficool2 via Ko-fi
Caveats
Bug:
- Always uses Windows's high-DPI scaling setting, even when scaling override mode is set to "Application" in
File Explorer's compatibility settings for 
hammerplusplus.exe. This can result in less real estate than
Hammer 4.x, depending on Windows settings. - Does not correctly render
env_beampreviews when the env_beam itself is set as a start or end point.
Warning:
- Does not support some features from Hammer 4.x, such as "Convert WAD to VMT...", or loading GoldSrc ".MAP" files directly.
- Ignores
%notooltexture, with no option to disable this change. - Lighting preview ignores
_minlight.
Additional bugs can be found in the official issue tracker, which is no longer maintained.
