The Talos Principle, one of the most clever puzzle games in recent times, will receive a full-fledged expansion later this month, in the form of Road to Gehenna, which brings four episodes filled with challenging puzzles, while exploring the rich backstory of the game.

The Talos Principle surprised quite a lot of people when it arrived at the beginning of the year, as developer Croteam, mostly known for the mindless Serious Sam shooters, delivered a touching puzzle experience with many philosophical themes.

Later this month, a major expansion will arrive for the game, called Road to Gehenna. It brings a series of advanced puzzles and allows players to control Uriel, Elohim's messenger, who must free the souls trapped in the brand new environment.

The game's original writers are back for the expansion so prepare to learn much more about the whole experience, and the actual mysteries of Gehenna. New characters as well as a new society with its own history and philosophy are also promised for the expansion.

The Talos Principle: Road to Gehenna arrives on PC, Mac, and Linux platforms, via Steam, on July 23. You can check out quite a few interesting screenshots in the gallery below and look forward to more details as we get closer to the end of the month.