Both Dash and Charge are released under Creative Commons Attribution CC-BY.
That means that if you want to make a game using or based on this, you just need to give us attribution for our work.
Because Charge is based off Blades in the Dark, you would also need to include attribution to the creators of this game as well.
To do so, copy the text below in your own game and things should be good to go.
This work is based on Charge, product of Fari RPGs (https://farirpgs.com/), developed and authored by René-Pier Deshaies-Gélinas, and licensed for our use under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/)
This work is also based on Blades in the Dark (found at http://www.bladesinthedark.com/), product of One Seven Design, developed and authored by John Harper, and licensed for our use under the Creative Commons Attribution 3.0 Unported license (http://creativecommons.org/licenses/by/3.0/).