Relativity

Relativity is a single-player level based on Portal 2. The core gameplay is to solve puzzles made by the stairs.

This level, as an expansion of the original version of Portal 2, is designed for Chapter 7: The Reunion. In this chapter, the player, after being betrayed and falling, has the goal of climbing up and solving tricky puzzles. The designed level, Relativity, is inspired by Escher's painting “Relativity” and keeps the main symbol in the painting, stairs, as the core mechanical object in the level. The stairs are used to climb up to higher platforms in the game, and the portal can also do the same thing. Other than using stairs as a visual symbol, I try to combine these two features and deceive players as Wheatley does in Chapter 7.

“Relativity (1953) by Maurits Cornelis Escher – Artchive.” https://www.artchive.com/artwork/relativity-maurits-cornelis-escher-1953/