http://store.steampowered.com/genre/Adventure/
Tons of games are now on sale at Steam, not just including adventure games.
Some adventure highlights:
Dark Fall: Lost Souls 10.19
Ceville and Jack Keane, 6.79 each
Indigo Prophecy and Culpa Innata, 3.39 each
The Whispered World 14.99
The Sherlock Holmes Collection 27.49 (Six games included!)
Runaway, the Dream of the Turtle 7.49
and many more, including Daily Deals. The deal ends July 4.
