Aside from disc-based games, you can install digital games directly to the XMB, just like a digital purchase from the PlayStation Store. These come in .pkg files.
The HEN didn't just unlock games. It unlocked a goodbye.
The PS3 HEN ecosystem divides games into three primary categories based on their format and how the system mounts them. 1. PKG Games (Digital Installation)
Can you play PS3 HEN games online? Yes, but there is always a minor risk of a console or account ban from the PlayStation Network (PSN). To minimize risk, adhere to these safety protocols:
Unlocking Your PS3: A Complete Guide to HEN Games (Homebrew Enabler) is a software solution that allows you to run homebrew applications and backups on nearly any PlayStation 3 model, including Slim and Super Slim versions that cannot support full Custom Firmware (CFW). Unlike CFW, HEN is not persistent ; you must manually re-enable it via the "★ Enable HEN" icon in the Game column of your XMB every time you reboot the console. How to Get and Play HEN Games