Deponia is currently free on Steam - normally the adventure costs €9.99.

Deponia is a comedy point-and-click adventure set in a garbage dump world. Players control Rufus, a poor junkyard resident, as he tries to win over Goal, a wealthy woman from the floating city above, while trying to save the planet along the way.

The game features hand-drawn HD 2D comic-style graphics, wacky humor and challenging puzzles. Its universe is clearly inspired by Douglas Adams, Terry Pratchett and Matt Groening. Recent Steam reviews sit at “Very Positive” (90% of the last 74 reviews).

Free to keep when you get it before 20 Aug @ 10:00am

Grab it soon: the offer only runs until August 20, 10:00am.

Source: Steam