The "GoldBerg" tag in the filename refers to a well-known "emulator" or "crack" used in the digital piracy community to bypass Steam’s DRM (Digital Rights Management). Compressed .rar files are split into parts to make them easier to download or share on forums; part08 is simply one piece of the larger game installation.
If you are interested in the live-action adaptation, the Gotham Knights TV series followed a different plot involving Batman's adopted son and was canceled after one season . Gotham.Knights-GoldBerg.part08.rar
In this game, the story picks up after the death of Bruce Wayne. With Batman gone, his four protégés——must step up to protect a city falling into chaos and uncover the truth behind Bruce's final investigation. The "Part 8" Narrative: The Court of Owls The "GoldBerg" tag in the filename refers to