Screenshots of Dishonored developer Arkane Studio’s long cancelled Half-Life 2: Episode 4 have appeared online.

Half-Life 2: Episode 4, or Return to Ravenholm as it is also known, was in development at the studio between 2006 and 2007 before behind cancelled. Valve Time claims that the screenshots found here have been verified as being work from Half-Life 2: Episode 4, and feature various models and textures that Arkane planned to use in the game.

Last year, Valve’s Marc Laidlaw explained the reasons behind the project’s cancellation. “We are big fans of Arkane and wanted to come up with a project we could work on together,” he said. “We threw ideas around, they built some cool stuff, but we eventually decided that it didn’t make sense to pursue it at the time. As I recall, we felt like a lot of the staples of Ravenholm — headcrabs and zombies! — were pretty much played out, and the fact that it would have to take place sometime before the end of Episode 2 (so as not to advance beyond where Valve had pushed the story) was a creative constraint that would hamper the project…and Arkane.”

A video featuring screenshots and animations can be found below.

Source: ValveTime