Lead writer Marc Laidlaw left Valve in 2016, and the very next year, he released Epistle 3, a short, legally-distinct "fanfic" about Gertie Fremont that served as a collection of ideas on how he might have resolved the Half-Life 2: Episode Two cliffhanger. Laidlaw has expressed regret over publishing the story, mainly due to the trouble it caused his former coworkers, but that hasn't stopped fans from trying to adapt his vague outline into a fully-fledged game.
Project Borealis is one such ambitious effort, seeking to re-create the Source feel of Half-Life 2 within Unreal Engine—building an entire sequel from scratch—but others, like Boreal-Alyph and Interlude, never reached the finish line. Alyx threw a bit of a spanner in the works, re-contextualizing the ending of Episode Two and setting up its own sequel, which is reportedly nearing the finish line (as evident by all the 'HLX' leaks found in the Source 2 backend), but that still hasn't deterred modders. And now, a far more modest solo project is on track to release later this year.
Jim Partridge announced All Good Things earlier this year in a blog post explaining that he has been...
