Steam News announces a free week is underway for Action Henk that will run until midday Sunday, and the Windows, Linux, and OS X racing game is on sale for 50% off during that period. Developer RageSquid has added new daily challenges to the game, this news post outlines how those work and offers this video illustrating the news. Here's word on why you might want to check this out: "Run, jump and butt-slide into the glorious toy-filled world of Action Henk! Become a master of momentum and defy physics as you race against a band of ragged 90s action figures to once and for all prove that Action Henk is the fastest of them all!"