Release Date: 18/04/2011, updated in 2022
Price: 72% off
Out Now: Mac, PC, PS3, Switch and Xbox 360
Skill Rating: 8+ year-olds
Players: 1-2 (2 online)
Genres: Action, Adventure, Brain Game, Traversal (Narrative, Platform, Puzzle, Sequencing and Simulation)
Accessibility: 26 features
Components: 3D Third-Person
Developer: Valve Software (@ValveSoftware)
Costs: Purchase cost