I’ve seen a lot of people asking for a "full download of Hammer 4.1" lately. I think there is some confusion floating around because 4.1 is a standalone retail product you can download like a game.

[TUTORIAL] Where to find & set up Valve Hammer Editor 4.1 (The "Full" 2013 SDK Version)

If you need the actual installer for archival purposes (offline PC), use Steam's backup feature on the SDK Base 2013 tools. That gives you a legal, full backup.

VoidWalker_Levels Date: Today at 10:23 AM Section: Source SDK → Mapping Discussions

Happy clipping, — VoidWalker Hammer 4.1 isn't a separate download. Install Source SDK Base 2013 Multiplayer from your Steam Tools library. That is the full version.