TeamSpen's Hammer Addons

TeamSpen's Hammer Addons are a set of tweaks and enhancements for Hammer, developed by TeamSpen210. They include a modified FGD for every game, based on a unified system that allows changes to easily be applied to multiple games. A postcompiler is also included, adding support for several custom internal entities along with other useful features.

While development is mainly focused on Portal 2, the addons include FGDs for most Valve titles, as well as some non-Valve games. The postcompiler will also work with any Source game, provided the game does not make extensive changes to the map format.

Note:TeamSpen's Hammer Addons is included with

Portal 2: Community Edition

Features

Improved FGDs, with rearranged base classes better matching the engine's layout, entities and keyvalues that are normally missing, additional helpers, and various other tweaks

Nearly every point entity is now represented as an icon sprite, instead of the default colored cube.
Portal 2 entities such as prop_portal and prop_indicator_panel have new custom models, accurately representing their in-game appearance
The Targetname base class is now BaseEntityPoint/BaseEntityBrush

Automatic packing of custom content detected in the map, or specified in comp_pack entities.
Several other comp_ entities that allow doing normally impossible things, like positioning entities outside the map or renaming an entity in a specific copy of an instance.
Static Prop Combine support for all games, generally more reliable than Valve's implementation
In games supporting VScript, an Init Code field is added to all entities, which can be used to directly write code that's executed inside the entity's script scope on spawn.
Additionally, backtick ( ` ) characters used in Init Code and the RunScriptCode input will be converted to quotes in-game, allowing strings to be passed.
For Portal 2, a set of comp_vactube_ entities are added to automate the creation of vactube systems.

Documentation

List of TeamSpen's Hammer Addons Entities

Supported games

FGD included

Alien Swarm
Counter-Strike: Global Offensive
Half-Life 2
Half-Life 2: Episode One
Half-Life 2: Episode Two
- Note: - Does not include FGD changes from 20th anniversary that added features such as radial fog, HDR color override, etc...
Left 4 Dead
Left 4 Dead 2
- Note:'s FGD is missing features added in the The Last Stand update, and so the default FGD file should be kept for references.
Portal
Portal 2
Team Fortress 2

Note:All

Team Fortress 2 branch-based games (

,

, and

) - Does not include FGD changes from February 18, 2025 engine update, which added vscript-related Keyvalues and radial fog KeyValue to env_fog_controller.