Alien Swarm: Global Offensive is an attempt to create a CS:GO modding SDK based on the Alien Swarm SDK. Based on a modified version of Alien Swarm SDK named Enhanced Source.

View thirdpartylegalnotices.txt to view sources that were used in the making of the ASW:GO SDK.

Tip

It is also the first Swarm SDK-based modification to support Linux.

Setting up the project

Windows

• Get Visual Studio 2019 or anything later. Older compilers before 2015 will not work.
• Now head to the src directory and run CreateSolution.bat
• Open the Visual Studio solution and compile Client (GAMENAME) and Server (GAMENAME) to get the client.dll and server.dll
• Once compiled, go to the root of the ASW:GO game files and run start_hl2.bat to run the mod

Linux

• Enable casefold if you're using an ext4 file system.
• If you're on Arch Linux enable multilib in your pacman.conf.
• For AMD64 users
  • Debian: build-essential gcc-multilib g++-multilib
  • Arch Linux: base-devel gcc dpkg
• Head to the src directory and run CreateSolution.sh
• Now once you've ran CreateSolution.sh, you'll see a Makefile has been generated.
• Build the new Game_HL2_Template.mak Makefile.

Copy the built ASW:GO .so's onto the bin/linux64 directory.

Universal

• Grab Enhanced Source's game/core directory, and place the core directory in the root of ASW:GO SDK's game files
• If you're building Half-Life 2 or it's episodes, grab the hl2 folder from the Steam installation and place it in the root of the ASW:GO SDK's game files under steam_hl2
• Grab CS:GO's game files and binaries, and place the platform directory inside of the root of the ASW:GO SDK's game files.

Supported games

Majority of these games are untested.

• DEFERRED - Alien Swarm Deferred (Untested)
• TEMPLATE - Custom mod template (Untested)
• PORTAL/PORTAL_TEMPLATE - Portal (Untested)
• HL2/HL2_TEMPLATE - Half-Life 2 (Playable)
• HL2_EPISODIC - Half-Life 2 Episode (1/2) (Playable)
• VECTRONIC - The old mod version of PUNT (Untested)

Currently supported stuff

OS	Supported?
Windows (10)	Yes
Windows (11)	Yes
Linux	Yes

Tested depots

• manifest 2224497558453288476 (depot 732)
  • manifest 7043469183016184477 (depot 731)
• manifest 4047004309608881181 (depot 732)
  • manifest 7043469183016184477 (depot 731)

Community

We have a Discord community that you can join right here!