Both portal games can be rediscovered again and again, even if you have played them countless times. portal 2The Cooperative Testing Initiative campaign is no different. It’s a fantastic series of puzzles along five official test courses, each with its own set of test chambers that doesn’t lose anything from the main line portal
portal is also an excellent choice because it is so accessible. It doesn’t take too long to master the movement and physics, so even if your partner (or you!) isn’t a ‘gamer’, you can still have loads of fun with this pickup.
You can also play cooperatively locally or online. It’s available on PC and Nintendo Switch (and PlayStation 3 and Xbox 360 if they’re still connected).