Open Gaming License

What if you want to write your own game and use the Year Zero Rules Engine (the rules used in Mutant Year Zero, Coriolis: The Third Horizon, Tales from the Loop and Forbidden Lands)? That is where the Open Gaming License (OGL) comes in. Created by Wizards of the Coast originally, OGL is now a standard of sharing rules with the community. You can by using the OGL for the Year Zero Engine create your own games, just as long as you follow the agreement within it.

Here is the current OGL for Year Zero Engine.

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