: You must navigate and explore a giant labyrinth to find the exit.

While you are looking for a "free download full version," it is important to note that is a commercial title officially available on Steam .

If you are looking for free alternatives or similar "lost" themed games:

: You can purchase and download the game through the Steam Store.

: Reviews indicate the game can be completed in less than 5 minutes. Availability and Official Source

: It is a first-person "labyrinth simulator" with high walls and hidden areas.