You can license your games adapted from Legacy: Life Among the Ruins and this system reference document (SRD) using the moniker “Worlds of Legacy”. The contents of the SRD are available for use under the Creative Commons Attribution (CC-BY) license.
To make use of this license, all you need to do is put the attribution provided below clearly in your work. That’s it – you don’t need to pay us any fees, make your own work Creative Commons licensed, or anything else.
To use the Worlds of Legacy moniker and give us credit for our part in your work, please add this text wherever you set out your own copyright (traditionally at the document start), at the same font size as the rest of your copyright section:
This work is based on Legacy: Life Among the Ruins (found at https://ufopress.co.uk/our-games/legacy-life-among-ruins/), product of UFO Press Limited, developed and authored by Jay Iles and Douglas Santana Mota, and licensed for our use under the Creative Commons Attribution 3.0 Unported license (http://creativecommons.org/licenses/by/3.0/).
If you’re publishing electronically, you can make “Creative Commons Attribution 3.0 Unported license” a link to https://creativecommons.org/licenses/by/3.0 and “Legacy: Life Among the Ruins” a link to https://ufopress.co.uk/our-games/legacy-life-among-ruins/, instead of printing the URLs separately.
Using the Logo
To make legal use of the Worlds of Legacy logo, you must include the following text: