VScript

VScript, introduced since Left 4 Dead 2 and later backported to Team Fortress 2 (and other games on its branch), is a virtual machine for scripting that acts as an abstract binding layer between the Source and Source 2 engine and external scripts. According to the Alien Swarm - SDK, the following scripting languages are supported or could be in the near future:

• Squirrel
• Lua
• Gamemonkey
• Python

Implementations

Squirrel

SDK Base 2013 - MP (2025) / Team Fortress 2 branch
General	List of Script Functions Script Examples Game Events Note: All of these games runs on same branch as . Any non-game specific functionality is inherited, but no additional game-specific functionality is added.
Team Fortress 2	List of Script Functions Constants Script Examples Game Events
Counter-Strike: Source	Constants Script Examples Game Events
Day of Defeat: Source	Game Events
Half-Life 2: Deathmatch	Game Events
Half-Life Deathmatch: Source	Game Events
Other (Valve)
Left 4 Dead 2	Scripting Director Scripts Script Examples List of Script Functions
Alien Swarm	List of Script Functions
Portal 2	List of Script Functions
Source Filmmaker	Only exists on the SFM build of TF2. No TF2 or SFM-specific API. Unused.
Counter-Strike: Global Offensive	List of Script Functions Listening to game events VScript Examples
Other (third-party)
Strata Source	VScript documentation is covered on its wiki: VScript API Reference
Contagion	List of Script Functions
Nuclear Dawn	List of Script Functions
Titanfall	List of Server Script Functions List of Client Script Functions List of UI Script Functions
Titanfall 2	List of Server Script Functions
Apex Legends	-
Alien Swarm: Reactive Drop	List of Script Functions
Mapbase (also in )	Scripting Script Functions
Jabroni Brawl: Episode 3	List of Script Functions
Dino D-Day	List of Script Functions
Revelations 2012	List of Script Functions
Military Conflict: Vietnam	List of Script Functions

Lua

Source 2
General	Source 2 Animation System VScript API
Dota 2	Scripting Scripting API
SteamVR Home	Scripting Scripting API Scripted Tool Creation Scripted Flashlight Tool Tutorial
Half-Life: Alyx	Scripting Scripting API
Other
Jabroni Brawl: Episode 3	List of Script Functions

JavaScript

Confirm:Does this relate to VScript?

Source 2
Counter-Strike 2	Scripting Scripting API

See also

• VScript Fundamentals
• List of Script Libraries
• Entity Scripts
• logic_script (entity)
• script, script_execute (console command)

External Links

• An interactive VScript Book for Beginners