Ravenholm. We don't go there. But, foolishly, we were going to go back there.
In hindsight, this feels like an extreme case of getting ahead of yourself. Back in 2006, Arkane Studios (before it became a Zenimax subsidiary) was contracted by Valve to make Half-Life 2: Episode 4 which was titled Return to Ravenholm. How young and naive we all were, thinking that Half-Life 2: Episode 3's eventual release was a foregone conclusion.
Today, video game documentary production NoClip released a new eight-second GIF of Return to Ravenholm's gameplay: