"The CS:GO Authoring Tools/SDK is freely available on Steam to all Counter-Strike: Global Offensive owners" - Valve Developer Community.
Now what? EVERYONE can get it. (Thanks to CS:GO Free Weekend event on May 17). :D

 

The Counter-Strike: Global Offensive Authoring Tools, also known as an SDK, is a set of software utilities that allow you to create your own levels, and other gameplay elements. They include versions of Source SDK tools that have been updated to work with the CS:GO version of the Source Engine.

 

http://i352.photobucket.com/albums/r324/tpkhanh89/csgo-sdk/csgo-sdk_zpsaa9393a4.png

The package includes:

• Updated Hammer, the Source level editor (Hammer v4.1, Build 5774)
• Suite of command line compiling utilities, such as studiomdl and map compiling tools
• Updated Face Poser (Valve Face Poser v1.0, Build Date: August 15 2012)
• Workshop Map Publisher
• Tutorial maps and Prefabs

Download CS:GO SDK (27.15 Mb)

Note:

• After downloading and extracting the zip file, you'll get 4 folders bin, platform, sdk_content and sdk_tools, move all of them to Counter-Strike Global Offensive folder, then create a shortcut to .../Counter-Strike Global Offensive/bin/SDKLauncher.exe.
• Workshop Map Publisher requires Steam to be running.

A few more screenshots:

Hammer World Editor

http://i352.photobucket.com/albums/r324/tpkhanh89/csgo-sdk/hammer_zpsb7f78fca.png

Face Poser

http://i352.photobucket.com/albums/r324/tpkhanh89/csgo-sdk/faceposer_zps488254f9.png

Workshop Map Publisher

http://i352.photobucket.com/albums/r324/tpkhanh89/csgo-sdk/mappublisher_zps8df7e086.png

http://i352.photobucket.com/albums/r324/tpkhanh89/csgo-sdk/mappublisher2_zps5511835c.png

PS: Please don't ask me how to use any of these tools, bcos I don't know how to use them. :D
@SmartPlay: I believe this thread should be pinned. :)

look here for how to use it

-

http://www.worldofleveldesign.com/categories/csgo-tutorials/csgo-sdk-beginner-01-download-install-launch.php

 

There are a number of good tuts in there

Where can i copy  the tool? After copy to C:\Program Files(x86)\Junkies Client\steamapps\common\Counter-Strike Global Offensive, it said something about gameinfo.txt.

Where can i copy  the tool? After copy to C:\Program Files(x86)\Junkies Client\steamapps\common\Counter-Strike Global Offensive, it said something about gameinfo.txt.

gameinfo.txt ???????? well I don't know anything about that . But yeah it asks for appid , and for that you can create a file steam_appid.txt in the /bin folder and then in that file only 745 should be written. And then it works .And if it gives error related to steam.dll file location in rev.ini then open the rev.ini file and look for this line -

SteamDll=.\bin\Steam\Steam.dll

Then Change it to 

#SteamDll=.\bin\Steam\Steam.dll

.,.,

And it works without any problem.

You must select gameinfo file so the SDK will know for what game you want to make map. You can find that file in the game directory. Fpr example in csgo for CS:GO or in cstrike for CSS or CS1.6

I downlowned and extracted. When open SDKLauncher: The Procedure entry point LOG_GENERAL could not be located in the dynamic link library.......

What Shold i do??

i've installed SoureSDK(Steam-https://developer.valvesoftware.com/wiki/Source_SDK

), it's OK, but i don't know how to mod CSGO with it~(edit gameconfigurations)

You can complete instructions?

How can i create bsp map using this tool?

Hi there, can anyone please provide an updated version of the sdk 'cause my cs:go is version 1.22.0.3 and this one when i try to open it says "The Procedure entry point

LOG_GENERAL could not be located in the dynamic link library tier0.dll" and i would like to make some cool maps for this game.  :rolleyes: 

 

Thanks in advance guys.

Hi there, can anyone please provide an updated version of the sdk 'cause my cs:go is version 1.22.0.3 and this one when i try to open it says "The Procedure entry point

LOG_GENERAL could not be located in the dynamic link library tier0.dll" and i would like to make some cool maps for this game.  :rolleyes: 

 

Thanks in advance guys.

I'll try to today.(It's only ~30 Mb's,right ?)

when hammer finish to open, close immediately... any help?