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Adventures on The Dying World of Barsoom.  A science-fantasy tabletop roleplaying game from the mind of Edgar Rice Burroughs
Adventures on The Dying World of Barsoom. A science-fantasy tabletop roleplaying game from the mind of Edgar Rice Burroughs
2,155 backers pledged £228,055 to help bring this project to life.

PREVIEW: John Carter of Mars Corebook

Posted by Chris Birch, Modiphius (Creator)

The astute amongst you will have already noticed that you have been invited to preview the PDF of the John Carter of Mars corebook via DriveThruRPG. You've been invited using your Kickstarter email address. If you have any problems downloading the file please contact

I'm currently writing this quick update on the way back from our family holiday so I'll keep it brief! Here's the text accompanying the preview as a reminder: 

This is a preview copy of the core rulebook. It isn’t quite finished – there are still a few art pieces to insert, backer NPC profiles to add, and backer names to insert in the back. Anything that’s a placeholder will be a bright pink color so please don't point those out in error reports :-)

There may still be a couple of lingering spelling or grammar errors – at 270 pages that’s not a small amount of written content! If you do spot an error, please let us know at with the subject heading “John Carter of Mars Error Report” by midnight PST Sunday 2nd September at the absolute latest. 

Changes made to certain chapters may alter the layout in the final edition, but this stage is imperative before we print, to catch any errors in the text beforehand. Thanks for taking the time to look through the PDF, we know you’re all eager to get your hands on the game, and appreciate any error feedback you can provide. The cool thing about the preview is, you can begin playing the game right now! Any changes will be minor, so the rules and mechanics are all as you’ll get in the final version. We'll be proofing with the printers during the first week of September and we'll give you an update on production once the corrections are complete and the final print files are sent off. 

Until next time travellers!

Chris, Modiphius

Kevin C, Khanada Taylor, and 32 more people like this update.


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    1. Missing avatar

      Matthew Rees on

      Is the deadline midnight on Sunday morning or midnight on Sunday night?

    2. George

      I checked drivethrurpg and the coupon for the preview was there. Just didn't get the invite. Not in spam either.

    3. George

      I did not receive one either?

    4. Stefan S Huddleston on

      Am I alone in not getting an invite?

    5. Frank Falkenberg on

      Will there be a watermark-free PDF of this preview on Pledgemanager?
      Currently, only the individual chapters in pre-layout version are available to download via Pledgemanager.