Source SDK Base
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Source SDK Base is a game/tool, shared between all owners of Valve Source games and locked to a particular engine branch, on which modders can base their projects. Both singleplayer and multiplayer mods can use it.
The games that include SDK Base are listed here. Free copies available through hardware promotions do not provide access.
Contents
- The stock gamecode is Episode One's or Episode Two's, depending on which version (see below) you are using. But the only content available is that of Half-Life 2 and Half-Life 2: Lost Coast. While Zombines and Hunters exist in the code and can be spawned, they appear as errors because their models are not available. If you want to use episodic things, you will need to mount the appropriate game instead.
- SDK Base might provide mods with Lost Coast's content, but dedicated servers do not. Multiplayer mods should either not use anything from Lost Coast, or include what they do use in their dedicated server download.
Versions
There are currently two versions of SDK Base: the Episode One version (AppID 215) and the superior Orange Box version (AppID 218).
The OB build is separate because it is not backwards-compatible with the Ep1 build. Unless you have a good reason for sticking with the Ep1 engine, you should use it.
Content (Orange Box)
- Source SDK Base - Orange Box (
sourcetest) - Source SDK Base (
sourcetest) - Half-Life 2: Lost Coast (
lostcoast) - Source 2007 shared (
hl2) - Source shared (
hl2) - Orange Box engine branch
Content (Episode One)
- Source SDK Base (
sourcetest) - Half-Life 2: Lost Coast (
lostcoast) - Source shared (
hl2) - Episode One engine branch
FAQ
- Where can I find Source SDK Base?
- In Steam's Tools tab. You will be prompted to install it when first running a mod, or you can install it yourself. There is no need to run it directly.
- Do I have to base my mod on Source SDK Base?
- No, you can base on any game. But bear in mind that:
- You are restricting the size of your audience if you require a specific purchase.
- Multiplayer games may break your mod by updating to an incompatible branch of the engine. This has already happened with DOD Source.
- How can I use additional Steam content?
- See Gameinfo.txt#Mounting content.