Steam's got a treasure hunt going on right now. From the 6th through the 20th, every 2 days you are given 4 objectives to complete. These can be unlocking achievements, getting a certain number of points in a level, or even something as simple as creating an avatar for your Steam profile. Each objective you complete of the 4 earns you a chance to win 5 games from your wishlist, and there are 20 winners chosen at random for each 2-day period. Also, completing at least 10 objectives over the entire 14 days, and logging onto Steam at least once on the 20th, will give you the chance to win 100 games of your choosing.
Long ago in a distant land, I, Aku, the shape-shifting Master of Darkness, unleashed an unspeakable evil,
but a foolish samurai warrior wielding a magic sword stepped forth to oppose me. Before the final blow
was struck, I tore open a portal in time and flung him into the future, where my evil is law! Now, the fool
seeks to return to the past, and undo the future that is Aku...
-Aku, Master of Masters, Deliverer of Darkness, Shogun of Sorrow