‚This is the entirety of Portal with a twist‘.
Portal is not only one of the most mechanically inventive puzzle games ever made, but it’s also one of the most elegantly crafted. Each of its Euclid-defying conundrums was built with surgical precision by Valve’s mega-brain designers, created to slowly and specifically introduce you to the power of thinking with Portals.
Central to this is where you can place portals throughout the game. Portals can only be opened on each test chamber’s white concrete walls, with black metallic surfaces denying your dynamic apertures in a fizzle of sparks.
These limitations are at the heart of Portal’s puzzling brilliance. But what would happen if you tried to play the game with all those surfaces switched? Such a harebrained scheme was recently hatched by Youtuber Marblr, who modded Portal to swap all the game’s wall textures around. Concrete becomes metal. Metal becomes concrete. „With the entire game remade using inverted textures, there’s an obvious question: is it possible to beat the game like this“? Marblr ponders.
To this premise, Marblr added a few extra rules and caveats. Although most of the playable surface areas in test-chambers are swapped, there are a couple of exceptions.
