From Valve Developer Community
Try visiting ModDB to stay up to date in this regard.This page is rarely updated when a new mod is released.
September 14, 2012: The Blackmesa Mod is finally released!
Portal 2 Released
Left 4 Dead 2 Released
Хорошая Графика Советую
Softimage Mod Tool 7.5
XSI Mod Tool 6.01
November 20, 2008: Neotokyo is almost complete. Catch up with what Studio Radi-8 have been doing all this time by looking through their newly-released media, and by listening to their chat with ModDB.
Half-Life Turns 10
November 19, 2008: Half-Life, Valve's first commercial release and critically acclaimed winner of over 50 Game of the Year awards, celebrates it's 10th anniversary today.
Left 4 Dead Released
November 18, 2008: Left 4 Dead, the cooperative survival horror, has been released on Steam!
Mods get Steamworks
Added tools: Particle Editor etc. Released
June 10, 2008: Much of the new tools from the Orange Box have been released today, you can grab them by restarting steam. To use the tools add the -tools command as a launch option to any Orange Box engine game/mod or the Orange Box Source SDK Base.
If you have any problems, visit the OB Editor Known Issues page.
Reissues (HL1 mod) released!
SourceU educational licensing opens
March 26, 2008: SourceU is a licensing program for schools (presumably including colleges and universities):
This educational licensing program bundles Valve's game development technologies and invaluable learning resources. By using Source engine technology in the classroom, educational institutions around the world can teach a variety of creative and technical disciplines, from 3D modeling and animation to game design.
The educational program is available to public or private schools starting with the 2008-2009 school year.
To find out how you can join the program, email us at firstname.lastname@example.org.
DIPRIP demo released
Valve's GDC presentations available
- Kim Swift and Erik Wolpaw, Integrating Narrative and Design: A Portal Post-Mortem
- Jason Mitchell, Stylization With a Purpose: The Illustrative World of Team Fortress 2
- Elan Ruskin, How To Go From PC to Cross Platform Development Without Killing Your Studio
- Alex Vlachos, Post Processing in The Orange Box
Source SDK Base - Orange Box available
February 23, 2008: The Source 2007 version of SDK Base from which Source mods can run for cross-game compatibility is available now. To use it, assuming your code has been updated of course, simply change your mod's AppID to
SDK Base Orange is only a 10MB download on top of the old SDK Base. Unfortunately it doesn't yet provide access to Episode Two content, but that's likely to change soon.
Source website updated
February 23, 2008: There's a stylish new Source website: source.valvesoftware.com. Thank god they updated those screenshots!
Valve Unveils Steamworks
January 29, 2008: Valve has released Steamworks, a complete suite of publishing and development tools ranging from copy protection to social networking services to server browsing. Steamworks is available free of charge, and will allow developers complete control over many aspects of production and post-production of their games.
Developers and publishers are spending more and more time and money cobbling together all the tools and backend systems needed to build and launch a successful title in today's market (...) Steamworks puts all those tools and systems together in one free package, liberating publishers and developers to concentrate on the game instead of the plumbing. — Gabe Newell.
- Read the press release for more information: Valve Unveils Steamworks