Deponia is described as 'fast-paced comedy of errors and one of the most unusual love stories in gaming history. The twist-filled story takes its off-beat characters all over trash planet Deponia, a unique game world in the style of Douglas Adams, Terry Pratchett and Matt Groening'. There are more than 10 games similar to Deponia for a variety of platforms, including Windows, Mac, iPhone, Linux and iPad. The best alternative is The Longest Journey. It's not free, so if you're looking for a free alternative, you could try Neofeud or The Marionette. Other Deponia like games are Kathy Rain (Paid), The Journey Down (Paid), The Black Mirror (Paid) and A New Beginning (Paid).
A horror-themed point-and-click puzzler. Play as Martin, a sculptor, who wakes up in front of a strange house. His car is parked out front but the keys are missing. With nowhere else to go the only thing to do is investigate the house.
AN ALL-NEW HIDDEN OBJECT ADVENTURE GAME Join Special Agent Alice Wallace, and dive into a whole new world of fresh puzzles and exciting characters. Spot clues and use your skill to reveal the truth behind crimes, romances, relationships and even deeper mysteries.