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Alpha Duo Roleplaying: Basic Rules is a short, no-frills reference document for the Alpha Duo game engine. Port it into your own tabletop sessions, or even modify it to publish games of your own!

What It Is:

Alpha Duo is a tabletop roleplaying engine. It provides a flexible, elegant rules structure for representing characters' capabilities and resolving their endeavors, but without committing to a specific genre, like fantasy or sci-fi. This does mean that playing it as-is will require you to fill some gaps with your imagination, but it also means that you won't have to "un-build" anything to switch genres—it's already just a foundation.

Who It's For:

Alpha Duo Roleplaying: Basic Rules might be for you if you:

  • Want a quick-and-easy foundation for your roleplaying without lots of fiddly bits
  • Like another game's themes and peripherals but want to splice in a smoother foundation
  • Want to publish a game of your own and would rather start with an existing foundation than re-invent the wheel

Want to see a game using this engine?

Check out Next Horizon, a game of low-stakes fantasy adventuring, HERE.

Current Version:

Version 1.1 released on 01/16/2021. Updates:

  • Replaced character advancement with a new system
  • Replaced the license with CC BY 4.0 


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Click download now to get access to the following files:

Alpha Duo Basic Rules version 1-1.pdf 2 MB

Development log


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The character sheet download is just the legal information.

Well that's embarrassing. Should be fixed now!

Thank you so much!