The Stanley Parable - The Stanley Parable is an Action, First-person Perspective, Puzzle-Platform, Exploration and Single-player video game created and published by Galactic Cafe.
Portal - Financial Aid Award Letter, - Messages and Calendar, - Grades.
Q.U.B.E - Q.
The Talos Principle - Philosophical first-person puzzle game.
Cylne - Cylne is an Amazing, Adventure, First-person Perspective, Puzzle-platform, and Single-player video game developed and published by Cylne.
Quantum Conundrum - Quantum Conundrum is a First-person Perspective game with strong Sci-fi, Puzzle-Platform, and Single-player elements published by Square Enix and developed by Airtight Games.