Steam006 Greenluma

It can unlock DLC for games the user already owns.

Rumors swirl:

The "story" of GreenLuma is one of constant evolution and adaptation in the cat-and-mouse game between Steam's security and the modding community. 1. The Origins: GreenLuma & Reborn steam006 greenluma

Steam006 himself disappeared from the scene years ago. The current "GreenLuma Reborn" is maintained by anonymous developers on GitHub (often taken down via DMCA). It can unlock DLC for games the user already owns