SDK >

• Far Cry SDK 1.1 (.exe, 29.43MB)

Valve requires you download the Half-Life 2 SDK from their Steam client.

Please visit http://developer.valvesoftware.com/wiki/Main_Page for more information.

SDK >

• Doom 3 SDK 1.1
  Windows Download (.exe, 11.73MB)
  Linux Download (.zip, 10.75MB)
  
• Doom 3 SDK 1.3 Update
  Windows Download (.exe, 5.34MB)
  Linux Download (10.74MB)

Tools >

• Syntax for Crimson Editor (7KB)
  Syntax highlighter upgrade for the free Crimson Editor. (Note: This upgrade will overwrite some of the other Crimson syntax files, because Doom 3 file extensions are used by other programs.)