"Cracked games" refer to officially paid VR games that have been modified (cracked) to bypass the digital rights management (DRM) checks, allowing them to run without a legitimate license.
Many high-end VR games require large data files (OBB). If these aren't placed in the correct directory, the game will fail to launch or remain stuck on a loading screen. The Risks of Using Cracked Games While "free" sounds enticing, the hidden costs can be high: Pico 4 Cracked Games