The Source engine is a 3D game engine developed by Valve Corporation. Its unique features include a large degree of modularity and flexibility, an artist-driven, shader-based renderer, accurate lip sync and facial expression technology, and a powerful, efficient and completely network-enabled physics system.

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Following the relaunch of TF2 as a free-to-play game, the Source SDK and SDK Base 2006 game have been made available to everyone on Steam.

Posted by Varsity on Jun 28th, 2011

In a somewhat off-the-cuff decision (confirmed through my own testing), Valve have made the Source SDK and the shared SDK Base 2006 game free to everyone on Steam. It's slightly odd that its Source 2007 sister app isn't free as well, but who's complaining? [SDK Base 2007 is now free.]

The release coincides with a huge update to the software and visual theme for the Valve Developer Community wiki, seen below.

New VDC theme
Post comment Comments
SoniMax Jun 29 2011, 1:45am says:

i need 2007 QQ

+6 votes     reply to comment
Jok3r098 Jun 29 2011, 6:22am says:

nice :)

Now ill just wish and wait till the portal 2 SDK :P

+2 votes     reply to comment
Jokerme Jun 29 2011, 6:36am says:

Really though, is there anyone without a source game out there?

+2 votes     reply to comment
cW#Ravenblood Jun 29 2011, 9:17am replied:

Dont think so hehe.
But well, Imo Valve trashed the Sdk :V

+4 votes     reply to comment
SteveZombie Jun 29 2011, 6:17pm replied:

This exactly.

+2 votes     reply to comment
RoboTyphoon Jun 30 2011, 1:01am says:

Wish valve would fix the L4D Authoring tools.

+2 votes     reply to comment
mikeaer0n Jul 4 2011, 6:05pm says:


+1 vote     reply to comment
BrokenGlasses Online
BrokenGlasses May 2 2012, 2:52pm says:

Well, that's a huge financial risk VALVe is taking.

+1 vote     reply to comment
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