Recs.
Updated
A puzzle game where the puzzles' goal are to reach the tetromino at the end. They have buttons, cubes, lasers and force fields similar to what you would find in Portal, as well as mechanics that interact with them (jammers, connectors). The game also has a philosophical story and backstory with optional lore terminals. The game is also divided into three worlds (and the Tower), each world into several levels, and each level into several puzzle rooms.
SpecsUpdate
Pros
Pro Great storyline
The puzzles in the game are great, but they're tied together with a thought provoking story line filled with mystery and intrigue. A story about a robot with human consciousness who is being guided by a disembodied voice, are they to be trusted? As the story progresses the player is drip fed clues which can lead them closer to the truth.