Creative Commons

Catalyst Game Labs wants people to join us in the skies of an alternate 1910. Not simply as observers, but active participants. We want you to leap on board ships as crewmen, helping to expand the breadth and scope of the Leviathans’ world. We want our players to share the game with their friends, create their own websites for their campaigns, write their own fiction, post their house rules, publish ebooks of their own Leviathans-based creations, create crossover systems for running Leviathans using other published (or home-grown) rules sets, or even (in perfect Steampunk style) create a mash-up of Leviathans and your favorite ‘other’ world.

To this end, we’re publishing Leviathans under a Creative Commons license. Details on how this license works are noted below.

The original text and artwork of this website are licensed under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.

View this license.

Leviathans products (including printed rulebooks/sourcebooks and PDFs) by Catalyst Game Labs are licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License. View this license.

What this means is that you are free to copy, share, and remix the text and artwork within these books and PDFs under the following conditions:

1) You do so only for noncommercial purposes;
2) You attribute Catalyst Game Labs (see below);
3) You license any derivatives under the same license.

When reusing/remixing Creative Commons-licensed Leviathans material, credit must be given to Catalyst Game Labs. Please also provide a link to

Artwork Credit
We’d like to see our artists get credit if their artwork is re-used (please include a link to the artist’s website).

Doug Chaffee is responsible for all color and black & white illustrations.

J. Lonnee is responsible for all orthographics (schematics). (He can also be found online here.)

Catalyst Game Labs will keep an eye on the work done by the Leviathans community. If Catalyst sees something it likes (fiction, art, rules and so on), Catalyst will contact that individual with the possibility of putting the person under contract (if they so wish) so Catalyst can release the material in question as part of the rest of the Leviathans line Catalyst will publish.