: An intuitive "blueprint" style interface that allows you to drag and drop cubes, gels, and turrets to build your own chambers.

Portal 2 is considered a masterpiece of the puzzle-platformer genre, and the "Complete" experience includes several significant expansions that transition the game from a linear narrative into an infinite testing platform. 🔬 Core Content Report: Portal 2 (Incl. All DLC)

The "Complete" edition typically refers to the base game along with the three primary official expansions. 1. Peer Review (DLC 1)