Grimrock

EDIT:
Solved. I restarted the steam and now it works...

I have a problem. When a subscribe dungeon in workshop on steam it doesnt show up in custom dungeons when i lunch the game. It didnt work for me. But i could activate steam workshop FROM THE GAME - there was button somewhere to browse a steam and when i subscribed the dungeon from there it showed up in custom dungeons. Problem is that i cannot find the button that lunched the steam from the game. Do you know where it is? I am wondering that it was in custom dungeons but now it is not there. My version of the game is beta 1.2.11. Can u help?

It's a matter of patience. When you subscribe from the in game menu, it takes a moment for the custom dungeon to download.

EDIT: Misunderstood the question, sorry.
You're looking for the Browse Workshop button at the bottom left of the custom dungeon menu.