A Portal 2 mod that’s been in the works for several years is Portal 2: Desolation. It’s a fan-made mod that features a brand new campaign, a new model for shooting portals, new characters, and more. From the looks of it it’s set to be the community’s version of Portal 3, set years after the events of Portal 2 (I wonder if J.K. Simmons will re-prise his role as Cave Johnson).