
Pathfinder:
D&D 4th Edition:
To distinguish them from the originals, these revised editions have "r1" in the filename and the words "Revision 1" in the bottom left corner of the title page. The revisions contain errata, updates, and clarifications where appropriate.
As a reminder, if you're planning on playing (rather than running) this adventure path, only download the Player's Guide. The Campaign Guide is meant for GMs/DMs only, and contains details about the entire plot of the adventure path.
For more information about the ZEITGEIST adventure path, click here.